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Best Sony A7 IV Memory Cards With Speed & Buffer Tests

You are here: Home / Sony Alpha Mirrorless Cameras / Sony A7 IV Guides & Resources / Best Sony A7 IV Memory Cards With Speed & Buffer Tests

Disclosure: As an Amazon Associate I earn from qualifying purchases made through links on this site. I may also earn from links to other online retailers at no extra cost to you.

Last updated: September 13, 2023 by Timothy Mayo - 53 Comments

If you’d like to know which are the best memory cards for the Sony a7 IV and how many shots you can take before hitting the buffer, then you’ve come to the right place.

So far I’ve speed tested 5 CFexpress Type-A cards, 14 UHS-II and 3 UHS-I memory cards in-camera to see how they perform, since in-camera write speeds don’t always match up to what’s on the card label.

This guide should help you to find the best memory cards for your needs and also help you to avoid spending more money than you really need to.

Sony A7 IV Memory Card Guide
Table of Contents[Hide][Show]
  • Quick In-Camera Card Speed Comparison
  • Which Memory Cards are Supported?
  • CFexpress Type-A Memory Cards+−
    • 1. Sony CEA-G CFexpress Type-A
    • 2. ProGrade Digital CFexpress Type A Cobalt
    • 3. Delkin Devices BLACK CFexpress Type A
    • 4. Delkin Devices POWER CFexpress Type A
    • 5. Lexar Professional CFexpress Type-A Gold
    • 6. Angelbird AV Pro CFexpress 2.0 Type A
    • 7. Sony CEA-M Series CFexpress Type A
    • 8. Exascend Essential CFexpress Type-A
    • 9. Pergear Professional CFexpress Type A
  • Best UHS-II Memory Cards+−
    • 1. Kingston Canvas React Plus UHS-II SDXC Memory Card
    • 2. Sony SF-G Tough UHS-II
    • 3. SanDisk Extreme Pro UHS-II
    • 4. Lexar Professional 2000X UHS-II
    • 5. Delkin Devices 64GB POWER UHS-II SDXC
    • 6. Transcend SD 700S UHS-II
    • 7. Manfrotto Professional UHS-II
    • 8. Angelbird AV Pro Mk 2 V90
    • 9. ProGrade V90 UHS-II
    • 10. Sony SF-M Tough UHS-II
    • 11. Sony SF-M UHS-II
    • 12. ProGrade V60 UHS-II
    • 13. Lexar Professional 1667X UHS-II
    • 14. Sony SF-E UHS-II
  • Best UHS-I Memory Cards+−
    • 1. SanDisk Extreme Pro UHS-I
    • 2. SanDisk Extreme UHS-I
    • 3. Lexar Professional 633X UHS-I
  • Memory Card Readers+−
    • ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader
    • Sony MRW-S1 UHS-II USB Memory Card Reader/Writer
    • Kingston MobileLite Plus USB 3.2 SDHC/SDXC UHS-II Card Reader (MLP)
  • Memory Cards for Recording Video
  • Memory Cards for S&Q Motion Shooting
  • What Size Memory Card Do You Need?
  • How Many Images Can Be Recorded on a Memory Card?
  • Movie Record Times
  • Simultaneous Recording Slot 1 + Slot 2
  • Sort RAW / JPEG
  • Dual Card Setup Guide
  • Summary
  • FAQs
  • Sony A7 IV Guides & Resources

Quick In-Camera Card Speed Comparison

Here are my in-camera card speed comparison results for all of the CFexpress Type-A and UHS-II SD cards that I’ve tested so far in my Sony a7 IV.

If you scroll down a little further you will find my complete buffer test results for each card and file format.

CFexpress Type-A Memory Cards

Memory Card* Approx In-Camera Write Speed** Max Shots/BurstPrice Check
1. Sony CEA-G CFexpress Type-A (160GB)600 MB/sOver 1000B&H Photo | Amazon
2. ProGrade Digital CFexpress Type A Cobalt (160GB)600 MB/sOver 1000B&H Photo | Amazon
3. Delkin Devices BLACK CFexpress Type A (160GB)600 MB/sOver 1000B&H Photo | Amazon
4. Delkin Devices POWER CFexpress Type A (160GB)600 MB/sOver 1000B&H Photo | Amazon
5. Lexar Professional CFexpress Type-A Gold (160GB)600 MB/sOver 1000B&H Photo | Amazon
6. Angelbird AV Pro CFexpress 2.0 Type A (1TB)Not yet testedB&H Photo | Amazon
7. Sony CEA-M Series CFexpress Type A (960GB)Not yet testedB&H Photo | Amazon
8. Exascend Essential CFexpress Type-A (240 GB)468 MB/s90B&H Photo | Amazon
9. Pergear Professional CFexpress Type A (260GB)458 MB/s79Pergear | Amazon
* Shooting Compressed RAW + Extra Fine JPEG in Hi+ Drive Mode. ** Compressed RAW + Extra Fine JPEG

UHS-II SD Memory Cards

These tests were done using my Sony a7 IV and 64GB cards. Unlike the CFexpress cards you will hit the buffer when using UHS-II cards. However you won’t hit the buffer with the fastest UHS-II cards if you shoot in lossless compress raw or jpeg extra fine. See my complete buffer results further down for all the details.

Memory CardIn-Camera Write SpeedPrice Check
1. Sony SF-G Tough247 MB/sB&H Photo | Amazon
2. Kingston Canvas React Plus246 MB/sB&H Photo | Amazon
3. SanDisk Extreme Pro 244 MB/sB&H Photo | Amazon
4. Lexar Professional 2000X243 MB/sB&H Photo | Amazon
5. Delkin Devices POWER243 MB/sB&H Photo | Amazon
6. Transcend SD 700S242 MB/sB&H Photo | Amazon
7. Manfrotto Professional242 MB/sManfrotto
8. Angelbird AV Pro Mk 2 V90241 MB/sB&H Photo | Amazon
9. ProGrade V90239 MB/sB&H Photo | Amazon
10. Sony SF-M Tough152 MB/sB&H Photo | Amazon
11. Sony SF-M152 MB/sB&H Photo | Amazon
12. ProGrade V60140 MB/sB&H Photo | Amazon
13. Lexar Professional 1667X103 MB/sB&H Photo | Amazon
14. Sony SF-E76 MB/sB&H Photo | Amazon

Sony A7 IV Price Check at: B&H Photo

If you find this article helpful then you may also like my Sony A7 IV Accessories Guide and Lenses Guide.

Sony A7 IV Forum & Facebook Group

If you are looking for further help and advice on the a7 IV or would simply like to share your photos and videos, then please head over to our Sony a7 Forum. If you prefer Facebook then we also run the Sony a7 IV Shooters Group.

Which Memory Cards are Supported?

The Sony a7IV has two memory card slots, here are the cards that each slot supports:

  • Slot 1: CFexpress Type A and UHS-I and UHS-II (SDHC/SDXC) SD cards
  • Slot 2: Only UHS-I and UHS-II (SD/SDHC/SDXC) cards
Sony a7IV Memory Card Slots

CFexpress Type-A Memory Cards

The Sony a7IV joins both the Sony a1 and the Sony a7SIII by adding support for the faster CFexpress Type-A memory cards. Unlike the a1 and a7SIII however, only one of the memory card slots supports the faster cards.

If you want to shoot in S&Q Mode with the file format XAVC S-I 4k, a record frame rate of 25p / 30p and a frame rate of 50fps /60fps (2x slow motion) then you will need a CFexpress Type A card. The a7 IV will not let you record in this specific format with a V90 card.

Important Note: Please don’t confuse these cards with CFexpress Type-B Cards, these are much larger and are not compatible with the a7IV. Only Type-A Cards are supported in the a7IV.

1. Sony CEA-G CFexpress Type-A

Sony CFexpress Type A Memory Cards
  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Video Performance Guarantee (VPG): 400
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 80 GB / 160 GB / 320 GB / 640 GB

I’ve tested both the 80GB and 160GB versions in my a7 IV and they work perfectly.

In-Camera Speed / Buffer Test Results

They are so fast that you’ll never even get close to maxing out the buffer of the a7 IV. You can shoot 1000 shots in uncompressed RAW and never hit the buffer which clears almost instantly.

Sony CEA-G CFexpress Type-A Buffer Speed Results Sony A7IV

Price Check & Buyer Reviews for Sony CEA-G CFexpress Type-A

At: Amazon | B&H Photo

2. ProGrade Digital CFexpress Type A Cobalt

ProGrade Digital 160GB CFexpress Type A Cobalt Memory Card
  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Video Performance Guarantee (VPG): 400
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 160 GB

In-Camera Speed / Buffer Test Results

Just like the Sony cards, they are so fast that you’ll never get close to maxing out the buffer on the a7 IV. You can shoot 1000 shots in uncompressed RAW and never hit the buffer which clears almost instantly.

ProGrade Digital CFexpress Type A Cobalt Buffer Speed Results Sony A7IV

Price Check & Buyer Reviews for ProGrade Digital CFexpress Type A Cobalt

At: Amazon | B&H Photo

3. Delkin Devices BLACK CFexpress Type A

Delkin Devices BLACK CFexpress Type A (880/790)
  • Max Read Speed: 880 MB/s
  • Max Write Speed: 790 MB/s
  • Video Performance Guarantee (VPG): 400
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 80 GB / 160 GB

The Delkin Devices BLACK CFexpress Type-A memory cards are designed and supported in the USA.

These BLACK cards are basically the same as the POWER cards but they also include a 48 Hour Replacement Guarantee.

They are available in both 80GB and 160GB capacities. Both capacities have the same max read speeds (880MB/s) but the larger 160GB card has a slightly faster write speed of 790MB/s vs 730MB/s for the 80GB card.

In-Camera Speed & Buffer Test Results

Just like with the Sony and Prograde cards, you never hit the buffer with the Delkin cards.

Delkin Devices BLACK CFexpress Type A Buffer Speed Results Sony A7IV

Price Check & Buyer Reviews for Delkin Devices BLACK CFexpress Type A

At: Amazon | B&H Photo

4. Delkin Devices POWER CFexpress Type A

Delkin Devices POWER CFexpress Type A (880/790)
  • Max Read Speed: 880 MB/s
  • Max Write Speed: 790 MB/s
  • Video Performance Guarantee (VPG): 400
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 80 GB / 160 GB

The Delkin Devices BLACK CFexpress Type-A memory cards are designed and supported in the USA.

They are available in both 80GB and 160GB capacities. Both capacities have the same max read speeds (880MB/s) but the larger 160GB card has a slightly faster write speed of 790MB/s vs 730MB/s for the 80GB card.

In-Camera Speed & Buffer Test Results

Just like with the Sony and Prograde cards, you will never hit the buffer with the Delkin cards.

Delkin Devices POWER CFexpress Type A Buffer Speed Results Sony A7IV

Price Check & Buyer Reviews for Delkin Devices POWER CFexpress Type A

At: Amazon | B&H Photo

5. Lexar Professional CFexpress Type-A Gold

Lexar Professional CFexpress Type-A Gold
  • Max Read Speed: 900 MB/s
  • Max Write Speed: 800 MB/s
  • Video Performance Guarantee (VPG): 400
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 80 GB / 160 GB

In-Camera Speed & Buffer Test Results

Just like with the other CFexpress cards here, you will never hit the buffer with the Lexar cards no matter which file type you are shooting in.

Lexar Professional CFexpress Type-A Gold Buffer Speed Results Sony A7IV

Check Price & Reviews for the Lexar Professional CFexpress Type-A Gold

At: B&H Photo | Amazon

6. Angelbird AV Pro CFexpress 2.0 Type A

6. Angelbird AV Pro CFexpress 2.0 Type A Memory Card
  • Max Read Speed: 820 MB/s
  • Max Write Speed: 730 MB/s
  • Minimum Sustained Write Speed: 650 MB/s
  • Capacities: 1 TB

I’ve not yet tested the Angelbird card in-camera but do have a card on order and hope to test it in September.

Check Price & Buyer Reviews: Angelbird AV Pro CFexpress 2.0 Type A

At: B&H Photo | Amazon

7. Sony CEA-M Series CFexpress Type A

Sony CEA-M Series CFexpress Type A Cards
  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Video Performance Guarantee (VPG): 200
  • Minimum Sustained Write Speed: 200 MB/s
  • Capacities: 960 GB / 1920 GB

I’ve not yet tested the Sony CEA-M Series cards in-camera but will do very soon.

Check Price & Buyer Reviews: Sony CEA-M Series CFexpress Type A

At: B&H Photo | Amazon

8. Exascend Essential CFexpress Type-A

Exascend Essential Series CFexpress Type A Memory Cards
  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s
  • Video Performance Guarantee (VPG): 200
  • Minimum Sustained Write Speed: 200 MB/s
  • Capacities: 240 GB / 360 GB / 480 GB

In-Camera Speed / Buffer Test Results

Here are my in-camera test results using my Sony A7 IV and a 240 GB Exascend Essential CFexpress Type-A memory card.

When shooting compressed raw + JPEG Extra Fine (Hi+) to slot 1 the in-camera write speed is around 468 MB/s.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)Never hits the buffer< 2.00
Compressed RAW (36.6MB)Never hits the buffer< 2.00
Lossless Compressed RAW L (40.5MB)Never hits the buffer< 2.00
JPEG Extra Fine (24MB)Never hits the buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)662.60
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)902.58
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)Never hits the buffer< 2.00

Check Price & Reviews: Exascend Essential CFexpress Type-A

At: B&H Photo | Amazon

9. Pergear Professional CFexpress Type A

Pergear Professional CFexpress Type A Memory Cards
  • Max Read Speed: 880 MB/s
  • Max Write Speed: 900 MB/s
  • Video Performance Guarantee (VPG): N/A
  • Minimum Sustained Write Speed: 400 MB/s
  • Capacities: 80 GB / 260 GB / 520 GB

In-Camera Speed / Buffer Test Results

Here are my in-camera test results using my Sony A7 IV and a 260 GB Pergear Professional CFexpress Type-A memory card.

When shooting compressed raw + JPEG Extra Fine (Hi+) to slot 1 the in-camera write speed is around 458 MB/s.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)Never hits the buffer< 2.00
Compressed RAW (36.6MB)Never hits the buffer< 2.00
Lossless Compressed RAW L (40.5MB)Never hits the buffer< 2.00
JPEG Extra Fine (24MB)Never hits the buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)582.60
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)792.46
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)Never hits the buffer< 2.00

Check Price & Buyer Reviews: Pergear Professional CFexpress Type A

At: B&H Photo | Amazon

Best UHS-II Memory Cards

Thankfully the Sony a7 IV also supports UHS-I and UHS-II (SD/SDHC/SDXC) memory cards in both memory card slots, so you don’t need to spend a fortune on the CFexpress Type-A cards if you don’t really need them.

Here are my recommendations for UHS-II cards for the a7 IV based on my in-camera speed tests using 64GB cards. Please note that when shooting in uncompressed RAW, lossless compressed RAW, uncompressed RAW + JPEG or lossless compressed RAW + JPEG the maximum frames per second is reduced from 10 fps to 6 fps.

1. Kingston Canvas React Plus UHS-II SDXC Memory Card

Kingston Canvas React Plus UHS-II SDXC Memory Cards

Kingston have been in the memory business since 1987, so it’s safe to say they know a thing or two about memory!

Their Canvas React Plus UHS-II SDXC cards have a claimed read speed of 300MB/s and a write speed of 290MB/s. They are only a fraction slower in-camera than the Sony SF-G cards (246 MB/s vs 247 MB/s) but they are typically priced around 40% less for a 64GB card and also currently include a UHS-II card reader.

They receive very positive reviews and appear to be just as reliable as the Sony and SanDisk cards. They are V90 rated and available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 246 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)263.85
Compressed RAW (36.6MB)673.40
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)174.53
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)244.26
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)223.05

For the price and performance these are the UHS-II cards that I would recommend for the a7 IV unless you need the toughness of the Sony SF-G cards.

Check Price & Reviews: Kingston Canvas React Plus UHS-II SDXC

At: B&H Photo | Amazon

2. Sony SF-G Tough UHS-II

sony a7iii sf-g tough UHS-II memory cards

The Sony SF-G Tough cards have a claimed read speed of 300MB/s and a write speed of 299MB/s. They are V90 rated and available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

The Sony Tough series of memory cards are 18 times stronger than traditional SD cards, bend proof to 180N, drop-proof to 5 meters, waterproof to a depth of 5 meters for up to 72 hours (IPX8 rating) and dust proof with an IP6X rating.

Tough cards feature a one-piece ribless structure and don’t have the common lock switch, they are also X-ray proof, magnet proof, anti-static and temperature proof.

I’ve tested these cards in my a7 IV and although newer versions work fine, there are issues with some older versions. Please read the following important note:

Very Important Note: Old versions of these cards do not work with the a7 IV. I get a message that says: “Unable to use Memory Card. Slot 1″. Sony has a replacement program for older versions of these cards due to VSC mode (Video Speed Class) issues where recorded footage on the card may be damaged or may not be recorded optimally. I have three cards that I never got around to sending back that don’t work at all in the a7 IV, but work fine in all of my other Sony cameras. New cards purchased from the second half of 2020 should not be affected, and my cards purchased this year work fine. You can find out if your cards are affected by checking this article.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 247 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)263.65
Compressed RAW (36.6MB)653.40
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)174.43
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)244.16
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)222.80

Check Price & Reviews: Sony SF-G Tough UHS-II

At: B&H Photo | Amazon

3. SanDisk Extreme Pro UHS-II

SanDisk Extreme Pro UHS-II V90 Memory Cards

The SanDisk Extreme Pro cards have a claimed read speed of 300MB/s and a write speed of 260MB/s. They are V90 rated and available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 244 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.00
Compressed RAW (36.6MB)623.64
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)174.43
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)244.30
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.58

Very Important Note: Older versions of this card are not V90 rated and therefore will not work in certain video modes. See the video section of this guide for details on which video file formats require V90 rated cards.

Check Price & Reviews: SanDisk Extreme Pro UHS-II

At: B&H Photo | Amazon

4. Lexar Professional 2000X UHS-II

Lexar Professional 2000X UHS-II

The Lexar Professional 2000X cards have a claimed read speed of 300MB/s and a write speed of 260MB/s. They are V90 rated and available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 243 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.05
Compressed RAW (36.6MB)643.71
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.41
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.08
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)223.32

Check Price & Reviews: Lexar Professional 2000X

At: B&H Photo | Amazon

5. Delkin Devices 64GB POWER UHS-II SDXC

Delkin Devices 64GB POWER UHS-II SDXC

The Delkin Devices 64GB POWER UHS-II SDXC memory cards support read speeds of up to 300 MB/s and write speeds of 250 MB/s. They are also V90 rated for video. They are available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 243 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.05
Compressed RAW (36.6MB)613.68
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.50
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.25
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.58

Check Price & Reviews: Delkin Devices POWER UHS-II SDXC

At: B&H Photo | Amazon

6. Transcend SD 700S UHS-II

Transcend SD 700S SD Cards

The Transcend SD 700S cards have a claimed read speed of 285MB/s and a write speed of 180MB/s. They are V90 rated and available in 32GB (SDHC), 64GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 242 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.10
Compressed RAW (36.6MB)673.73
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.40
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.45
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.10

Check Price & Reviews: Transcend SD 700S UHS-II

At: B&H Photo | Amazon

7. Manfrotto Professional UHS-II

Manfrotto Professional UHS-II SD Cards

The Manfrotto Professional cards have a claimed read speed of 280MB/s and a write speed of 250MB/s. They are rated V90 for video and are available in 64GB (SDXC) and 128GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 242 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.10
Compressed RAW (36.6MB)613.65
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.53
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.36
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.12

Price Check & Buyer Reviews for Manfrotto Professional UHS-II

At: Manfrotto

8. Angelbird AV Pro Mk 2 V90

Angelbird AV Pro Mk 2 Memory Cards

The Angelbird AV Pro Mk 2 V90 UHS-II memory cards support read speeds of up to 300 MB/s and write speeds of 280 MB/s. They are also V90 rated so they guarantee a minimum write speed of 90 MB/s. They are available in 32GB (SDHC), 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

I have tested these cards in my a7 IV for stills and they work fine. For video they didn’t work when the file format was set to XAVC S-I 4K or XAVC S-I HD the first time I used them, but all times after they have worked fine which is a little odd, because as V90 cards they should support these file formats without issue.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 241 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.12
Compressed RAW (36.6MB)613.91
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.76
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.41
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.15

Check Price & Reviews: Angelbird AV Pro Mk 2 Memory Cards

At: B&H Photo | Amazon

9. ProGrade V90 UHS-II

ProGrade V90 UHS-II Memor Cards

The ProGrade V90 cards have a claimed read speed of 300MB/s and a write speed of 250MB/s. They are V90 rated and available in 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 239 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)264.15
Compressed RAW (36.6MB)613.56
Lossless Compressed RAW (40.5MB)Never hits buffer< 2.00
JPEG Extra Fine (24MB)Never hits buffer< 2.00
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)164.35
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)234.56
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)213.58

Check Price & Reviews: ProGrade V90 UHS-II

At: B&H Photo | Amazon

10. Sony SF-M Tough UHS-II

Sony SF-M Tough UHS-II Memory Cards

Sony’s SF-M Tough Series are similar to the more expensive SF-G version but these are only rated V60 for video and their read time has been cut to 277MB/s and the write time to 150MB/s. They are available in 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

I’ve tested these cards in my a7 IV and although newer versions work fine, there are issues with some older versions. Please read the following important note:

Very Important Note: Old versions of these cards do not work with the a7 IV. I get a message that says: “Unable to use Memory Card. Slot 1″. Sony has a replacement program for older versions of these cards due to VSC mode (Video Speed Class) issues where recorded footage on the card may be damaged or may not be recorded optimally. I have three cards that I never got around to sending back that don’t work at all in the a7 IV, but work fine in all of my other Sony cameras. New cards purchased from the second half of 2020 should not be affected, and my cards purchased this year work fine. You can find out if your cards are affected by checking this article.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 152 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)196.36
Compressed RAW (36.6MB)375.76
Lossless Compressed RAW (40.5MB)293.76
JPEG Extra Fine (24MB)563.25
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)147.23
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)206.90
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)165.01

Check Price & Reviews: Sony SF-M Tough UHS-II

At: B&H Photo | Amazon

11. Sony SF-M UHS-II

Sony SF-M UHS-II Memory Cards

Sony’s SF-M Series are identical to the SF-M Tough Series just without the added toughness so they cost a little less. The Sony SF-M cards have a claimed read speed of 277MB/s and a write speed of 150MB/s. They are V60 rated and available in 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

I’ve tested these cards in my a7 IV and although newer versions work fine, there are issues with some older versions. Please read the following important note:

Very Important Note: Old versions of these cards do not work with the a7 IV. I get a message that says: “Unable to use Memory Card. Slot 1″. Sony has a replacement program for older versions of these cards due to VSC mode (Video Speed Class) issues where recorded footage on the card may be damaged or may not be recorded optimally. I have three cards that I never got around to sending back that don’t work at all in the a7 IV, but work fine in all of my other Sony cameras. New cards purchased from the second half of 2020 should not be affected, and my cards purchased this year work fine. You can find out if your cards are affected by checking this article.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 152 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)196.36
Compressed RAW (36.6MB)375.76
Lossless Compressed RAW (40.5MB)293.76
JPEG Extra Fine (24MB)563.25
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)147.23
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)206.90
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)165.01

Check Price & Reviews: Sony SF-M UHS-II

At: B&H Photo | Amazon

12. ProGrade V60 UHS-II

ProGrade V60 UHS-II

The ProGrade V60 cards have a claimed read speed of 250MB/s and a write speed of 130MB/s. They are V60 rated and available in 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 140 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)196.86
Compressed RAW (36.6MB)356.66
Lossless Compressed RAW (40.5MB)254.23
JPEG Extra Fine (24MB)486.60
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)147.96
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)207.64
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)155.38

Check Price & Reviews: ProGrade V60 UHS-II

At: B&H Photo | Amazon

13. Lexar Professional 1667X UHS-II

Lexar 1667X UHS-II SD Cards

The Lexar 1667X UHS-II SD cards have a claimed read speed of 250MB/s and a write speed of 120MB/S. They are V60 rated and available in 64GB (SDXC), 128GB (SDXC) and 256GB (SDXC) sizes.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 103 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)178.93
Compressed RAW (36.6MB)318.48
Lossless Compressed RAW (40.5MB)215.46
JPEG Extra Fine (24MB)354.63
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)147.42
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)199.85
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)147.42

Check Price & Review: Lexar Professional 1667X

At: B&H Photo | Amazon

14. Sony SF-E UHS-II

Sony SF-E UHS-II SD Cards

The Sony SF-E UHS-II SD cards are the lowest cost UHS-II compatible cards that Sony currently sells. They have a claimed read speed of 270MB/s and a write speed of 70MB/s for the 64GB card and 120MB/s for the larger 128GB and 256GB cards. The 64GB (SDXC) card is rated V30 for video whereas the 128GB (SDXC) and 256GB (SDXC) cards are rated V60.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 76 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)1512.73
Compressed RAW (36.6MB)2911.45
Lossless Compressed RAW (40.5MB)197.26
JPEG Extra Fine (24MB)306.15
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)1314.33
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)1812.91
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)139.73

Check Price & Reviews: Sony SF-E UHS-II

At: B&H Photo | Amazon

Best UHS-I Memory Cards

The a7IV does also support the slower UHS-I memory cards. So if you are not shooting a lot of continuous bursts and filling the buffer quickly, you can save a few extra dollars by purchasing these cheaper cards instead.

1. SanDisk Extreme Pro UHS-I

SanDisk Extreme Pro UHS-I SD Cards

The SanDisk Extreme Pro cards have a claimed read speed of 170MB/s and a write speed of 90MB/s. They are rated V30 for video.

I have tested these in my a7 IV for stills and they work fine. For video they work fine for file formats that don’t require V60 or higher rated cards. See the video section of this guide for further details on card ratings.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 83 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)1811.91
Compressed RAW (36.6MB)2910.76
Lossless Compressed RAW (40.5MB)186.55
JPEG Extra Fine (24MB)317.21
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)1313.50
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)1912.36
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)149.31

Check Price & Reviews: SanDisk Extreme Pro UHS-I

At: B&H Photo | Amazon

2. SanDisk Extreme UHS-I

SanDisk Extreme UHS-I SD Cards

The SanDisk Extreme cards have a claimed read speed of 150MB/s and a write speed of 70MB/s. They are rated V30 for video.

I have tested these in my a7 IV for stills and they work fine. For video they work fine for file formats that don’t require V60 or higher rated cards. See the video section of this guide for further details on card ratings.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 61 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)1615.30
Compressed RAW (36.6MB)2410.80
Lossless Compressed RAW (40.5MB)178.73
JPEG Extra Fine (24MB)287.88
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)1317.75
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)1815.93
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)1311.88

Price Check & Buyer Reviews for SanDisk Extreme UHS-I (150/70)

At: Amazon | B&H Photo

3. Lexar Professional 633X UHS-I

Lexar Professional 633X UHS-I Memory Cards

The Lexar Professional 633X cards have a claimed read speed of 95MB/s and a write speed of 45MB/s. They are rated V30 for video.

I have tested these in my a7 IV for stills and they work fine. For video they work fine for file formats that don’t require V60 or higher rated cards. See the video section of this guide for further details on card ratings.

In-Camera Speed / Buffer Test Results

When shooting uncompressed raw to slot 1 the in-camera write speed is around 37 MB/s. Here are my in-camera speed test results using a 64GB card and shooting to slot one in Hi+ drive mode.

Image TypeShots Before Hitting BufferTime to Clear Buffer (Seconds)
Uncompressed RAW (70.3MB)1526.25
Compressed RAW (36.6MB)2522.28
Lossless Compressed RAW (40.5MB)1614.91
JPEG Extra Fine (24MB)2612.66
Uncompressed RAW (70.3MB) + JPEG Extra Fine (24MB)1329.23
Compressed RAW (36.6MB) + JPEG Extra Fine (24MB)1826.56
Lossless Compressed RAW (40.5MB) + JPEG Extra Fine (24MB)1319.05

Price Check & Buyer Reviews for Lexar 64GB Professional 633x UHS-I SDXC Memory Card

At: Amazon | B&H Photo

Memory Card Readers

If you decide to purchase a CFexpress Type-A card or a UHS-II card, then you will also need a compatible memory card reader unless you connect your a7 IV directly to your computer. Here are some of the options available.

Sony MRW-G2 CFExpress Type-A Card Reader

Sony MRW-G2 CFexpress Type A/SD Memory Card Reader

The Sony MRW-G2 supports both CFexpress Type A cards as well as a SD/SDHC/SDXC cards, along with transfer speeds of up to 10 Gb/s via USB 3.1 Gen 2. Both USB Type-C to Type-C and USB Type-C to Type-A cables are included.

Price Check & Buyer Reviews for Sony MRW-G2

At: Amazon | B&H Photo

ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader

ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader

The ProGrade Digital reader has basically the same specs as the Sony MRW-G2 reader but comes at a cheaper price. It has one CFexpress Type A slot and one UHS-II SDXC slot, and also support up to 10 Gb/s via USB 3.2 Gen 2 to deliver transfer speeds of up to 1.25 GB/s, or 1250 MB/s via its USB Type-C interface. It includes USB Type-C to Type-C and Type-C to Type-A cables.

Price Check & Buyer Reviews for ProGrade Digital CFexpress Type A & UHS-II SDXC Reader

At: Amazon | B&H Photo

Sony MRW-S1 UHS-II USB Memory Card Reader/Writer

sony mrw-s1 uhs-ii reader for a7iii

The Sony MRW-S1 UHS-II USB SD Card Reader/Writer can read/write to UHS-II SD Cards via a USB 3.1 interface and is backward compatible with UHS-I SD cards. The Sony MRW-S1 used together with Sony SF-G cards will transfer files to and from your computer around 2.6x faster than UHS-I SD cards.

Price Check & Buyer Reviews for Sony MRW-S1

At: Amazon | B&H Photo

Kingston MobileLite Plus USB 3.2 SDHC/SDXC UHS-II Card Reader (MLP)

Kingston MobileLite Plus USB 3.2 SDHC/SDXC UHS-II Card Reader (MLP)

This UHS-II SD card reader features a fast USB 3.2 Gen 1 interface and supports both UHS-II and UHS-I cards.

Price Check & Buyer Reviews for Kingston MobileLite Plus USB 3.2 SDHC/SDXC UHS-II Card Reader

At: Amazon | B&H Photo

Memory Cards for Recording Video

The Sony a7IV supports a number of different movie recording formats. The format that you choose to record in will determine the memory cards that you use. Here’s a list or supported recording formats and compatible memory cards for the a7IV.

Sony A7IV Compatible Memory Cards for Video Recording

Memory Cards for S&Q Motion Shooting

Here you can find a list of supported recording formats and compatible memory cards for S&Q motion shooting with the a7IV.

You will only require a CFexpress Type-A card when shooting in S&Q Mode with the file format set to XAVC S-I 4k, a record frame rate of 25p and a frame rate of 50fps (2x slow motion).

Sony A7IV Compatible Memory Cards for S&Q Motion

*1 When [Rec Frame Rate] is set to [30p]/[25p]/[24p], [Frame Rate] is set to [120fps]/[100fps], and the recordable bit rate is set to 50 Mbps, an SDXC card (V60 or higher) or a CFexpress Type A memory card (VPG200 or higher) is required.

*2 When [Rec Frame Rate] is set to [30p]/[25p]/[24p] and [Frame Rate] is set to [60fps]/[50fps] for slow-motion recording, a CFexpress Type A memory card (VPG200 or higher) is required.

What Size Memory Card Do You Need?

If you will be shooting a lot of continuous bursts then you will probably want to use at least a 128GB card. For CFexpress you can only choose between 80GB and 160GB right now.

If you are not shooting long continuous bursts then you’ll probably be fine with 32GB or 64GB cards, and you certainly won’t need the faster CFexpress Type A cards.

For shooting video the size of memory card will depend largely on the format that you are recording in. Or you may be using an external recorder anyway so this won’t be so important.

I’d recommend only using SDXC cards and not SDHC. 32GB cards and smaller are SDHC and use the FAT32 file system. If you shoot video with a SDHC card your files will be split into 4GB chunks which creates extra work in post production.

The following tables will help you to better understand what size cards you need.

How Many Images Can Be Recorded on a Memory Card?

The table below shows the approximate number of images that can be recorded on a memory card formatted in the a7IV when using a Sony memory card with the aspect ratio set to 3:2 and JPEG/HEIF size set to L:33M.

The values may vary depending on the shooting conditions and the type of memory card used.

Sony A7IV Number of Recordable Images By Memory Card Size

Movie Record Times

The table below shows the approximate total recording times using a Sony memory card formatted in the Sony a7IV. The values may vary depending on the shooting conditions and the type of memory card used.

Sony A7IV Movie Record Times by Memory Card Size

Simultaneous Recording Slot 1 + Slot 2

If you want to record simultaneously to both slots 1 and 2 at the same time then there is no benefit to using a CFexpress Type-A memory card in slot 1.

With this setup the write speed is restricted to the maximum write speed of the UHS-II card in slot 2. So if you shoot like this often you can save money by using UHS-II cards in slot 1 instead of CFexpress Type-A.

The only benefit to using a CFexpress Type-A card when shooting simultaneously is to enjoy the faster read times when copying the files to your computer.

Providing you are using identical UHS-II cards in both slots then the number of shots that you can take and the buffer clearing time will be the same as writing to a single slot. If one of the UHS-II cards is slower then you will be limited to the speed of that card.

Sort RAW / JPEG

You can also setup your a7 IV to record RAW files to slot 1 and JPEG files to slot 2, there is still a benefit to using a CFexpress card with this setup.

If you use a CFexpress Type-A card in slot 1 then providing you record either uncompressed or compressed raw to slot 1 and JPEGs to slot 2, you will never hit the buffer when shooting continuously. However, you must be using one of the faster UHS-II cards in slot 2 like the Kingston Canvas React Plus UHS-II or Sony SF-G Tough cards. Slower cards like the Sony SF-M cards will cause the buffer to be hit.

If you use UHS-II cards in both slots and want to shoot uncompressed or compressed raw to slot 1 and JPEGs to slot 2 you will hit the buffer after around 26 shots (uncompressed raw) or 67 shots (compressed raw).

Dual Card Setup Guide

If you are not sure how to setup dual card recording with the Sony a7 IV then you might find my short video guide helpful.

Summary

If you shoot a lot of continuous bursts and want the buffer to clear as fast as possible, then you’ll want to use a CFexpress Type-A card in slot one.

All of the CFexpress Type-A cards tested so far perform very well in-camera. The Sony CEA-G, Prograde, Delkin and Lexar cards all allow you to shoot with all file types including Compressed RAW + JPEG Extra Fine without ever hitting the buffer.

The Exascend and Pergear cards are a little slower when shooting Compressed RAW + JPEG Extra Fine, but these cards are also a lot cheaper and much better value.

I’m expecting the Angelbird AV Pro CFexpress 2.0 Type A (1TB) to perform well when I’m able to test this card, and I expect the Sony CEA-M Series will also perform well.

For a UHS-II card I’d recommend the Kingston Canvas React Plus UHS-II SDXC. They are only a fraction slower in-camera than the Sony SF-G Tough cards (246 MB/s vs 247 MB/s) but they are typically priced around 40% less for a 64GB card.

If you want to shoot in S&Q Mode with the file format XAVC S-I 4k, a record frame rate of 25p/30p and a frame rate of 50fps /60fps then you will need a CFexpress Type A card. The a7 IV will not let you record in this specific format with a V90 card.

Alternatively you could record in one of the none S&Q video formats such as 4k60 XAVCS and then interpret the footage in post. Of course you won’t be able to view the S&Q footage in camera and this is an extra post processing step, but now you won’t require a CFexpress card and you’ll also get audio since recording in S&Q disables the audio.

If you shoot a lot of continuous bursts in uncompressed raw format then you will hit the buffer when using the Kingston or Sony SF-G UHS-II cards after only 26 shots, but it clears in 3.85 seconds so it’s rarely an issue. With compressed raw you’ll hit the buffer in around 67 shots. If you shoot JPEGS you’ll never hit the buffer. You’ll need a CFexpress card if you don’t want to hit the buffer shooting compressed or uncompressed raw.

If you have some of the older Sony SF-M series, SF-M series TOUGH specification, and SF-G series TOUGH specification SD cards, you might find that they don’t work at all in the a7 IV I’m afraid. There is a replacement program running for these cards due to a different issue, so I’d suggest replacing them before it expires on Mar. 31, 2022.

It would be good to hear about what cards you are using in your own a7 IV and whether or not you have run into any problems with them. Let me know in the comments below.

Table of Contents[Hide][Show]
  • Quick In-Camera Card Speed Comparison
  • Which Memory Cards are Supported?
  • CFexpress Type-A Memory Cards+−
    • 1. Sony CEA-G CFexpress Type-A
    • 2. ProGrade Digital CFexpress Type A Cobalt
    • 3. Delkin Devices BLACK CFexpress Type A
    • 4. Delkin Devices POWER CFexpress Type A
    • 5. Lexar Professional CFexpress Type-A Gold
    • 6. Angelbird AV Pro CFexpress 2.0 Type A
    • 7. Sony CEA-M Series CFexpress Type A
    • 8. Exascend Essential CFexpress Type-A
    • 9. Pergear Professional CFexpress Type A
  • Best UHS-II Memory Cards+−
    • 1. Kingston Canvas React Plus UHS-II SDXC Memory Card
    • 2. Sony SF-G Tough UHS-II
    • 3. SanDisk Extreme Pro UHS-II
    • 4. Lexar Professional 2000X UHS-II
    • 5. Delkin Devices 64GB POWER UHS-II SDXC
    • 6. Transcend SD 700S UHS-II
    • 7. Manfrotto Professional UHS-II
    • 8. Angelbird AV Pro Mk 2 V90
    • 9. ProGrade V90 UHS-II
    • 10. Sony SF-M Tough UHS-II
    • 11. Sony SF-M UHS-II
    • 12. ProGrade V60 UHS-II
    • 13. Lexar Professional 1667X UHS-II
    • 14. Sony SF-E UHS-II
  • Best UHS-I Memory Cards+−
    • 1. SanDisk Extreme Pro UHS-I
    • 2. SanDisk Extreme UHS-I
    • 3. Lexar Professional 633X UHS-I
  • Memory Card Readers+−
    • ProGrade Digital CFexpress Type A & UHS-II SDXC Dual-Slot USB 3.2 Gen 2 Card Reader
    • Sony MRW-S1 UHS-II USB Memory Card Reader/Writer
    • Kingston MobileLite Plus USB 3.2 SDHC/SDXC UHS-II Card Reader (MLP)
  • Memory Cards for Recording Video
  • Memory Cards for S&Q Motion Shooting
  • What Size Memory Card Do You Need?
  • How Many Images Can Be Recorded on a Memory Card?
  • Movie Record Times
  • Simultaneous Recording Slot 1 + Slot 2
  • Sort RAW / JPEG
  • Dual Card Setup Guide
  • Summary
  • FAQs
  • Sony A7 IV Guides & Resources

FAQs

Which memory cards are supported in the Sony a7IV?

The Sony a7IV supports CFexpress Type A memory cards in slot 1 only. UHS-I and UHS-II SD cards are also supported in both slot 1 and slot 2.

Sony A7 IV Forum & Facebook Group

If you are looking for further help and advice on the a7 IV or would simply like to share your photos and videos, then please head over to our Sony a7 Forum. If you prefer Facebook then we also run the Sony a7 IV Shooters Group.

Check Price & Buyer Reviews: Sony A7IV

At: B&H Photo | Amazon

Sony A7 IV Guides & Resources

Best Sony A7 IV Memory Cards With Speed & Buffer Tests

Sony A7 IV Accessories Guide

Ultimate Sony A7 IV Accessories Guide

Sony A7 IV Lenses Guide

The Best Lenses for the Sony A7IV in 2023

Sony a7IV Battery and Charger

Sony A7 IV Battery and Charger Guide

Sony a7IV Manual

Sony A7 IV User Manual & Online Help

Sony A7III vs A7IV

Sony A7III vs A7IV – A Detailed Comparison

Sony Alpha Forum

About Timothy Mayo

I love shooting wildlife the most but will happily point my camera at pretty much anything. I started Alpha Shooters in 2017 to share my own photographic journey and experiences shooting with Sony Alpha. The site has since evolved into a popular community and resource. You can find out more about my story here or follow me on Instagram if you wish. I also have a YouTube Channel but haven’t published much content over the past year due to spending more time changing smelly nappies and also launching our community forums. However, I do hope to get back to creating content again there soon!

Reader Interactions

Comments

  1. Ehsan

    July 2, 2023 at 11:36 pm

    Thanks Timothy for great contest and all your efforts for this website.

    I’m wondering how the Kodak UHS-II v90 performs comp[are to other brands you tested.

    If you can add that test results for that which has resonably priced for a V90 memory that would be awesome!

    Reply
    • Timothy Mayo

      July 5, 2023 at 5:59 am

      Thanks Ehsan. I’ve not tested the Kodak UHS-II v90 so can’t comment on its performance I’m afraid. I will look into adding it to my future tests though.

      Reply
  2. Jesse

    March 25, 2023 at 1:53 pm

    Has anyone experienced significant lag when trying to review photos on uhs-ii cards? I purchased a used a7iv that works perfectly, except for a 3-6 seconds lag when trying to review pictures as well as switching back to photo mode from preview mode. I’m wondering if I was sold a lemon.

    Reply
    • Timothy Mayo

      July 5, 2023 at 6:02 am

      Did you resolve this Jesse? Try changing your Auto Review settings. MENU → (Setup) → [Display Option] → [Auto Review] → desired setting. Personally I prefer it turned off.

      Reply
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