Best Memory Cards for Sony a7S III
Here are our top recommended memory cards for Sony a7S III mirrorless camera, including CFexpress cards (Type A) and UHS-II SD cards.
The Sony a7S III mirrorless camera has dual memory card slots that both accept either CFexpress cards (Type A) or UHS-II SD cards. Optimized video, optimized sensitivity, optimized speed, the Sony a7S III (Amazon, B&H, Adorama) is the best and most versatile 4K mirrorless camera on the market. Featuring a revised 12.1MP Exmor R BSI CMOS sensor and updated BIONZ XR image processor, the Sony a7S III is capable of recording in-camera 4K video up to 120 frames per second, 10-bit depth and 4:2:2 colour sampling and it offers faster performance, improved noise reduction, and a wider dynamic range (up to approximately 14 stops for stills and 15 stops for video), as well as fast 10 fps continuous shooting for up to 1000 consecutive raw frames. Additionally, 5-axis SteadyShot INSIDE sensor-shift image stabilization is available, too, which minimizes the appearance of camera shake by up to 5.5 stops. What’s more, the Sony a7S III gets 91% overall score and Gold Award from the experts at DPReview and it is a hugely powerful choice for independent video producers.
Below is our full list of best memory cards for Sony a7S III, including CFexpress cards (Type A) and UHS-II SD cards. Hope it can help you get the best out of your Sony a7S III mirrorless camera.
CFexpress Cards (Type A) | SD Cards
Best CFexpress Cards (Type A) for Sony a7S III
The Sony a7S III has two memory slots that both support CFexpress Type A cards for higher overall capacity and faster read and write speeds. But when it comes to CFexpress Type A cards, the choices are very limited. Currently, only Sony released their own TOUGH CFexpress Type A card which is available in 80GB and 160GB. Offering fast read speeds up to 800 MB/s along with write speeds up to 700 MB/s, the Sony TOUGH CFexpress Type A cards are ideally suited for high-speed continuous shooting of more than 1,000 uncompressed RAW still images, as well as 4K 120p movie recording at high bit rates with the Slow & Quick Motion function when paired with the Sony a7S III. Beyond its speed, this TOUGH memory card also has a reinforced physical design to withstand falls from up to 15′ and has been rigidity tested to 70 N of force. It’s also resistant to extreme temperatures, X-rays, electrostatic, and UV lighting. Offering further protection, File Rescue recovery software can be downloaded for recovering lost or even accidentally deleted files and Media Scan Utility can be used to automatically scan CFexpress cards and inform you of the flash memory condition. In addition, you can also get the Sony MRW-G2 CFexpress Type A/SD Card Reader, which allows you to transfer data approximately 2.8 times faster than with conventional media. Overall, we highly recommend the Sony TOUGH CFexpress Type A card as the top choice for the Sony a7S III users.
| CFexpress Card | Max. Read Speed | Max. Write Speed |
| Sony 160GB TOUGH CFexpress Type A Card | 800 MB/s | 700 MB/s |
| Sony 80GB TOUGH CFexpress Type A Card | 800 MB/s | 700 MB/s |
| Sony MRW-G2 CFexpress Type A/SD Card Reader | — | — |
Best SD Cards for Sony a7S III
In addition to the CFexpress Type A cards, both Sony a7S III card slots are also compatible with UHS-II SD memory cards. Speaking of the UHS-II SD cards, the Sony SF-G Tough UHS-II SD Card (V90), Kingston Canvas React Plus UHS-II SD Card (V90), ProGrade Digital UHS-II SDXC Card (V90), Delkin Devices Power UHS-II SDXC Card (V90) and Lexar Professional 2000x UHS-II SD Card (V90) are top five fastest and the most popular UHS-II SD cards on the market.
Offering maximum read speeds of up to 300 MB/s and maximum write speeds of up to 299 MB/s, the Sony SF-G Tough Series UHS-II SD card is currently the world’s fastest SD card on the market, and it is well-suited for video capture, including 8K, 4K XAVC S, 60p AVCHD, 3D, HFR, and Full HD video, as well as super fast continuous shooting. In addition, thanks to its V90 speed class rating, minimum write speeds are guaranteed not to drop below 90 MB/s. So, if you are seeking the highest write speed with a V90 rating as well as extremely high 250-300MB/s read speeds for transferring photos from the card to a computer, this is the recommended card for you.
In addition, the Kingston Canvas React Plus UHS-II SD Card is another great choice and great value SD card for shooting 8K, 4K, and Full HD video, as well as high-resolution photos. Besides, the ProGrade Digital UHS-II SDXC Card (V90) and the Delkin Devices Power UHS-II SDXC Card (V90) are two of the most popular SD cards with an affordable price on the market! If you need some fast and reliable UHS-II SD cards without spending too much (like Sony SF-G Tough UHS-II SD Card), these two cards are the perfect choice for you. If you need some budget choice, you can also consider the Sony SF-M Tough UHS-II SD Card (V60) and the ProGrade Digital UHS-II SD Card (V60). Below are the top recommended UHS-II SD cards for Sony a7S III mirrorless camera based on the speed and price, just get the one you like!
| UHS-II SD Cards | Max. Read Speed | Max. Write Speed |
| Sony SF-G Tough UHS-II SD Card (V90) | 300 MB/s | 299 MB/s |
| Kingston Canvas React Plus UHS-II SD Card (V90) | 300 MB/s | 260 MB/s |
| ProGrade Digital UHS-II SDXC Card (V90) | 300 MB/s | 250 MB/s |
| Delkin Devices Power UHS-II SDXC Card (V90) | 300 MB/s | 250 MB/s |
| Delkin Devices BLACK UHS-II SDXC Card (V90) | 300 MB/s | 250 MB/s |
| Lexar Professional 2000x UHS-II Card (V90) | 300 MB/s | 260 MB/s |
| SanDisk Extreme PRO UHS-II Card | 300 MB/s | 260 MB/s |
| Hoodman Steel 2000x SDXC UHS-II Card | 300 MB/s | 260 MB/s |
| Sony SF-M Tough UHS-II SDXC Card (V60) | 277 MB/s | 150 MB/s |
| ProGrade Digital UHS-II SDXC Card (V60) | 250 MB/s | 130 MB/s |
| Sony SF-E Series UHS-II SDXC Card (V60) | 270 MB/s | 120 MB/s |
| Lexar Professional 1667x UHS-II SD Card (V60) | 250 MB/s | 90 MB/s |
Don’t own the Sony a7S III yet? Just get it at Amazon, B&H, Adorama.
Read more: Best Lenses for Sony a7S III.