Best Memory Cards for Sony a7S III

Looking for the best memory cards for Sony a7S III? Here are our top recommended & fastest CFexpress cards and SD cards for Sony a7S III mirrorless camera.

The Sony a7S III has dual memory card slots that are both compatible with CFexpress Type A cards and UHS-II-compatible SD cards. Designed for outstanding video performance as well as low-light shooting, the Sony a7S III (AmazonB&HAdorama) is the latest ultimate creative tool for video professionals and all types of hybrid still/video shooters looking for a high-quality full-frame 4K video camera in a compact form factor. Featuring a brand new 12.1MP back-illuminated full-frame image sensor with ultra-high sensitivity and 15+ stop wide dynamic range as well as an updated BIONZ XR image processor, the Sony a7S III offers in-camera 4K video recording up to 120 frames per second, 10-bit depth and 4:2:2 colour sampling and it allows up to 4K 60p 16-bit RAW output to an external recorder via HDMI Type-A connector, offering additional post-production flexibility. Although the Sony a7S III is primarily designed for video, it is also an ideal still photography camera for those who need top-notch low-light and higher ISO imaging performance and expansive dynamic. The Sony a7S III offers a native range of ISO 80-102400, which can be further expanded down to an impressively low ISO 40 and up to a shockingly high ISO 409,600, and it supports up to approximately 14 stops for stills and 15 stops for video, and 10 fps continuous shooting for up to 1000 uncompressed raw files for stills. Overall, the Sony a7S III is the best and most versatile 4K mirrorless camera on the market.

As we mentioned above, the Sony a7S III has 2x memory card slots that both support CFexpress Type A cards and UHS-II SD cards. Although SD cards and CFexpress Type A cards are not the same in size, both card slots in the Sony a7S III will accept either card type. So, if you have already had some fast SD cards, you can continue to use them since most of the Sony a7S III’s features work fine with either V60 or V90 cards. But, if you would like to use the camera’s most bandwidth intensive recording format – S&Q (‘slow and quick’) mode with 10-bit 4:2:2 recording, you will still need some higher-performance CFexpress Type A cards. So, in order to get the ultra high read speeds (transfer speed) and write speeds (fast buffer clearing time) to get the best out of your Sony a7S III camera, here we list the top recommended & fastest CFexpress Type A cards and SD cards for the Sony a7S III mirrorless camera based on the speed and price. Just choose the one you like.

Recommended Memory Cards for Sony a7S III

Here are the quick comparison tables of our top recommended CFexpress Type A cards and SD cards for Sony a7S III mirrorless camera.

CFexpress Type A Cards & Readers:

CFexpress Type A CardsMax. Read SpeedMax. Write Speed
Sony TOUGH CFexpress Type A Card800 MB/s700 MB/s
Sony MRW-G2 CFexpress Type A/SD Card Reader

SD Cards:

SD CardMax. Read SpeedMax. Write Speed
Sony SF-G Tough UHS-II Card300 MB/s299 MB/s
Lexar Professional 2000x UHS-II Card300 MB/s260 MB/s
SanDisk Extreme PRO UHS-II Card300 MB/s260 MB/s
Hoodman Steel 2000x UHS-II SD Card300 MB/s260 MB/s
ProGrade Digital UHS-II SDXC Card300 MB/s250 MB/s
Delkin Devices Power UHS-II SDXC Card300 MB/s250 MB/s
Sony SF-M Tough UHS-II SDXC Card277 MB/s150 MB/s
Lexar Professional 1667x UHS-II SD Card250 MB/s90 MB/s
SanDisk Extreme PRO UHS-I Card170 MB/s90 MB/s

Any of these make for a good choice. If you’d like more detailed recommendations or other brands and models, you can find them below.

Best CFexpress Type A Cards for Sony a7S III

1. Sony TOUGH CFexpress Type A Memory Card

  • Max Read Speed: 800 MB/s
  • Max Write Speed: 700 MB/s

Available in both 80GB and 160GB, the Sony TOUGH CFexpress Type A cards are the world’s first CFexpress Type A memory cards, providing fast read speeds up to 800 MB/s along with write speeds up to 700 MB/s. This 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, which features two CFexpress Type A compatible media slots. The cards are equipped with a heat sink to transfer heat generated by the card to the exterior when transmitting large amounts of data at high speed, using Sony’s original alloy with excellent thermal conductivity. This enables users to record for long periods of time even when recording 4K 120p video internally.

In addition, designed specifically for CFexpress Type A memory cards, as well as SD/SDHC/SDXC card types, the Sony CFexpress Type A/SD card reader (MRW-G2) provides SuperSpeed USB 10Gbps (USB 3.2 Gen 2) transfer speed, via its USB Type-C connector, allowing creators to establish an efficient workflow when dealing with high-resolution images files, 4K video and other types of high-volume data. When combined with a CFexpress Type A card, it allows users to transfer data approximately 2.8 times faster than with conventional media.

Sony 160GB TOUGH CFexpress Type A Card: $398 at AmazonB&HAdorama.

Sony 80GB TOUGH CFexpress Type A Card: $198 at AmazonB&HAdorama.

Sony MRW-G2 CFexpress Type A/SD Card Reader: $118 at AmazonB&HAdorama.

Best SD Memory Cards for Sony a7S III

1. Sony SF-G Tough UHS-II Card (300 MB/s, V90)

 

  • UHS-II / V90 / U3 / Class 10
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 299 MB/s

The fastest UHS-II SD Card, highly recommended! 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 Memory Card is currently the world’s fastest SD memory cards, 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 cards for you.

Buy Sony SF-G Tough UHS-II SDXC Cards at AmazonB&HAdorama.

Buy Sony UHS-II SD Memory Card Reader at AmazonB&HAdorama.

2. Lexar Professional 2000x UHS-II Card (300 MB/s, V90)

 

  • UHS-II / V90 / U3 / Class 10
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 260 MB/s

Highly recommended and Best Value! With maximum read speeds of up to 300 MB/s and maximum write speeds of up to 260 MB/s, the Lexar Professional 2000x UHS-II card is the perfect match for any UHS-II compatible camera that records 4K and Full HD video or has a fast 8fps+ continuous shooting speed. The buffer clearing time will be much much quicker which means you can take more shots. It takes advantage of the UHS-II bus to support continuous shutter bursts and rapid shooting, as well as 4K, 3D, and Full HD video recording. Thanks to its V90 speed class rating, minimum write speeds are guaranteed not to drop below 90 MB/s. In addition, you can get a free Lexar SD UHS-II Reader for high-speed file transfer from card to computer, dramatically accelerating workflow.

Buy Lexar Professional 2000x UHS-II Cards: at AmazonB&HAdorama.

3. SanDisk Extreme PRO UHS-II Card (300 MB/s)

 

  • UHS-II / U3 / Class 10
  • Max. Read Speed: 300 MB/s
  • Max. Write Speed: 260 MB/s

Incredibly Fast SD Card. Designed for professional photographers and videographers, the SanDisk Extreme PRO UHS-II SDXC Memory Card takes advantage of the UHS-II bus to support advanced functions such as continuous shutter bursts and rapid shooting, as well as RAW and JPEG captures. This card is also well-suited for video capture, including 4K, 3D, and Full HD video, and can achieve maximum read speeds of up to 300 MB/s and maximum write speeds of up to 260 MB/s. Thanks to its U3 speed class rating, minimum write speeds are guaranteed not to drop below 30 MB/s.

Buy SanDisk Extreme PRO UHS-II SDXC Memory Cards at AmazonB&HAdorama.

4. Hoodman Steel 2000x UHS-II SD Card (300 MB/s)

  • UHS-II / U3 / Class 10
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 260 MB/s

Hoodman Steel is a ruggedized, steel plated SDXC card designed to withstand the rigors of high performance photography/videography. With a ruggedized steel construction, the Hoodman Steel 2000x SDXC UHS-II Memory Card supports 4K Ultra HD video and features a read speed of up to 300 MB/s and a write speed of up to 260 MB/s making it easy to transfer large files quickly and efficiently. Additionally, this card supports the UHS-II bus interface as it comes equipped with a second set of pins for high speed data transfers when used with UHS-II compliant devices. Another great choice!

Buy Hoodman Steel 2000x SDXC UHS-II Memory Card at AmazonB&HAdorama.

5. ProGrade Digital UHS-II SDXC Card (300 MB/s, V90)

  • UHS-II / V90 / U3 / Class 10
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 250 MB/s

Offering maximum read speeds of 300 MB/s and maximum write speeds of 250 MB/s, the ProGrade Digital UHS-II SDXC Card (300 MB/s, V90) can be well used in DSLRs, mirrorless cameras, camcorders, and digital cinema cameras that produce rich data streams, including 6K, 5K, 4K, UHD 4K, and high bit rate MPEG-4 video. It is also well-suited for fast burst shooting and raw photos. This card has also been designed with the V90 Video Speed Class rating, which guarantees minimum write speeds of at least 90 MB/s. Built for extreme conditions, ProGrade Digital UHS-II SDXC Memory Card is able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow and deserts. It is also shockproof and X-ray proof, and a built-in write protect switch helps to safeguard your content from being erased.

Buy ProGrade Digital UHS-II SDXC Card at AmazonB&HAdorama.

6. Delkin Devices Power UHS-II SDXC Card (300 MB/s, V90)

  • UHS-II / V90 / U3 / Class 10
  • Max Read Speed: 300 MB/s
  • Max Write Speed: 250 MB/s

Designed for professional photographers and videographers, the Delkin Devices POWER UHS-II SDXC Memory Card takes advantage of the UHS-II bus to support maximum read speeds of 300 MB/s and maximum write speeds of 250 MB/s. This card has also been designed with the V90 Video Speed Class rating, which guarantees minimum write speeds of at least 90 MB/s. All of this allows for users to capture 8K, 4K, 3D, HDR, high-speed and high-frame-rate recordings, and multiple video streams created by 360° cameras. It has also been approved for real-time broadcasting and supports data-intensive simultaneous captures, such as raw and JPEG, as well as video, still, GPS data, and time-lapse.

Buy Delkin Devices Power UHS-II SDXC Card at AmazonB&HAdorama.

7. Sony SF-M Tough Series UHS-II SDXC Card (277 MB/s, V60)

  • UHS-II / V60 / U3 / Class 10
  • Max Read Speed: 277 MB/s
  • Max Write Speed: 150 MB/s

Another great choice with an affordable price. With maximum read speeds of up to 270 MB/s and maximum write speeds of up to 150 MB/s, the Sony SF-M Tough Series UHS-II SDXC Memory Card is well-suited for 4K, 3D, HFR, and Full HD video recording, as well as continuous shutter bursts and rapid shooting. Thanks to its V60 speed class rating, minimum write speeds are guaranteed not to drop below 60 MB/s. To help facilitate card usage in almost any environment, as well as keeping your content safe, Sony has built the Tough Series with a rugged design that can withstand drops up to 16.4′ / 5m, immersion in up to 16.4′ / 5m of water for up to 72 hours, and is bend and dust proof, as well as able to withstand temperature extremes from -13 to 185°F.

Buy Sony SF-M Tough UHS-II SDXC Memory Card at AmazonB&HAdorama.

8. Lexar Professional 1667x UHS-II SD Card (250MB/s, V60)

  • UHS-II / V60 / U3 / Class 10
  • Max Read Speed: 250 MB/s
  • Max Write Speed: 90 MB/s

Affordable UHS-II card with excellent performance. With maximum read speeds of up to 250 MB/s and maximum write speeds of up to 90 MB/s, the Lexar Professional 1667x UHS-II card is great for fast burst shooting and 4K & full HD video recording! Thanks to its V60 speed class rating, minimum write speeds are guaranteed not to drop below 60 MB/s. This card offers excellent performance with a similar price of UHS-I cards. If you are really on a very tight budget and just want to save some money, this is the card for you! Great value!

Buy Lexar Professional 1667x UHS-II SD Card at AmazonB&HAdorama.

Read more: Best Lenses for Sony a7S III.