OWC Atlas Pro CFexpress 4.0 Type A

High-performance, highest quality memory card for professional filmmakers, photographers, and videographers using Sony Alpha and FX cameras

OWC Altas Pro CFexpress Type A Memory Card Lineup

Up to


Write Speed

Up to Over

2x Faster

Offload Speeds

VPG200 Certified for


Alpha and FX Cameras



Photo Shoots


CFexpress 4.0 Type A

Only $319.99


CFexpress 4.0 Type A

Only $519.99

Work up to 2x Faster

OWC Atlas Pro CFexpress 4.0 Type A memory cards utilize the latest in flash memory technology to double the speeds of CFexpress 2.0 cards while remaining backward compatible with existing devices. With 1850MB/s read and 1700MB/s write speeds and VPG200 certified to work with all Sony camera modes, these Atlas Pro CFexpress cards are perfect for the professional filmmaker or extreme action photographer that wants to dramatically speed up their offloads.

OWC Atlas Pro CFexpress Type A Memory Cards on MacBook Pro keyboard


Up to 1700MB/s write and 1850MB/s read speeds for the most advanced use cases of professional content creators including fast burst RAW image sequences and high bitrate video recording up to 8K1


Fully compliant with CFexpress Type A 4.0 specification and meets Type A 2.0 specifications


Delivers 400MB/s minimum sustained write speed


Includes Type A to Type B adapter to obtain maximum speed when paired with an OWC Atlas USB4 CFexpress 4.0 Card Reader


Designed for use in Sony Alpha and FX cameras including a9 III, a1, a7SIII, a7IV, a7rV, FX3, FX6, FR7, and FX30; as well as CFexpress Type A memory card readers and reader slot equipped devices


Impact, bend, shock, ESD, UV ray, and x-ray resistant


VPG200 certified to work with all Sony camera modes and enable the highest allowable settings in Sony Alpha, FX, and FR7 cameras


3 Year OWC Limited Warranty

Compatibility You Can Count On

compatible, but not at highest resolution settings
480GB OWC Atlas Pro CFexpress Type A Memory Card
960GB OWC Atlas Pro CFexpress Type A Memory Card

Atlas Pro

Atlas Pro





CFexpress 4.0

CFexpress 4.0

Max sequential read



Max sequential write



Min sustained write



Sony FX3

Sony FX6

Sony FX30

Sony FR7

Sony Alpha 1

Sony Alpha 7 IV

Sony Alpha 7s III

Sony Alpha 7R V

Sony Alpha 9 III

Shoot, Store, and Swap… Anywhere

Atlas Pro CFexpress cards can shrug off the toughest environmental challenges, including x-rays, UV rays, shocks, drops, and extreme temperatures. Work anywhere with any gear with the included Type A to Type B adapter. Go ahead…shoot, store, and swap with total peace of mind. Atlas Pro CFexpress cards have your work – and your back – well protected.

Photographer in ice cave

Who it's for:

  • Action sport and wildlife photographers using Sony cameras that want the fastest offload times.
  • Professional filmmakers using Sony cameras looking for a faster workflow when backing up media cards.
  • High end photo and video Sony cameras up to 8K resolution.
  • Professional content creators/Production companies looking to speed up their workflow.

What it’s for:

  • Recording a multicam interview using several Sony a7IV cameras.Capturing a loon landing on a lake
  • Filming a documentary using Sony FX30, FX3 and FX6 cameras and wanting to capture stunning B-roll and slow-motion video.
  • Recording Pro-slow motion using a Sony a7sIII or 8K video with a Sony a1.
  • Creating a freeze-frame sequence of a pole vaulter or a bird in flight with Pro-fast burst mode on the Sony a9III.
  • Capturing Pro hi resolution landscape pictures in RAW using a Sony a7RV.
  • Reducing ingestion times in half when offloading these memory cards with an OWC Atlas USB4 CFexpress 4.0 Card Reader
Sony Cameras + OWC Atlas Memory Cards

Truth in Numbers

Up to


Write Speed

Up to


Read Speed

Up to


Sustained Write Speed

Big theoretical performance numbers are certainly eye-catchers, but they are misleading when your workflow requires real-world speed. That’s why we take the extra time to run OWC flash storage solutions through intensive performance testing, and we share our test setup and parameters. Truthfully listing Atlas Pro CFexpress 4.0 Type A cards for reliable peak performance up to 1700MB/s write, 1850MB/s read, and 400MB/s sustained write speed defines our commitment to the “OWC Difference,” which ensures these CFexpress Type A cards will deliver the performance you are counting on.

Photographer Karen Hutton

Quality In = Quality Output

Thanks to an extremely thorough quality control process, you can work fearlessly knowing that your Atlas Pro CFexpress card will flawlessly deliver the speed and data integrity you need when you only have one chance to capture the moment. Quality in, quality output. An Atlas Pro CFexpress card is the difference-maker your high-end workflows and maximum camera setting uses deserve.

Invest Confidently

Details matter when considering which memory card you should purchase. Atlas Pro CFexpress 4.0 Type A cards leverage the CFA 4.0 (PCIe Gen4) specification which ensures you can use them with the latest cameras and readers while remaining fully compatible your existing investment in CFA 2.0 (PCIe Gen3) spec rated gear.

Sony camera and OWC Atlas Pro CFexpress Type A Memory Cards

A Perfect Pairing for Performance

Because we too are content creators, we understand having confidence in gear performance and reliability is a must. That’s why we’ve spent years designing a complete (and only one of its kind!) ecosystem of solutions to give you peace of mind in your workflow. From memory cards to custom software apps to card readers, the Atlas ecosystem delivers something greater than the sum of its parts.

By pairing your Atlas Pro CFexpress 4.0 Type A card with an OWC Atlas USB4 CFexpress 4.0 Card Reader, you can experience up to over 2x faster offloads:

Atlas Dual CFx/SD Reader

Atlas FXR Reader

Atlas USB4 Cfexpress Reader

Competitor 80GB CFA 2.0 Card

900MB/s Read
684MB/s Write



Atlas 480GB Pro Type A 4.0

901MB/s Read
882MB/s Write

836MB/s Read
739MB/s Write

1674MB/s Read
1590MB/s Write

Atlas 960GB Pro Type A 4.0

900MB/s Read
875MB/s Write

836MB/s Read
743MB/s Write

1674MB/s Read
1620MB/s Write

OWC Innergize - Photographer on mountaintop

Innergize Your Workflow with Highest Performance and Reliability

OWC Innergize™ is the first stage of the Capture to Completion™ ecosystem of OWC products designed to seamlessly propel professional photographers, videographers, and content creators to the highest level of workflow performance and reliability. This OWC custom-designed app is a complete health, performance, and field upgrade management tool when using OWC Atlas memory cards with OWC Atlas readers and reader equipped products.

Learn More

Work with Maximum Confidence and Reliability

OWC Innergize - Health


Over time and use cycles, flash memory does wear out. Innergize verifies and reports the percentage of use life remaining. Now you can work with full confidence your OWC flash memory product will deliver the reliability you can trust.

OWC Innergize - Sanitize


Writes, deletes, and formatting all take their toll on memory cards. Innergize cleans and restores the flash memory performance of OWC memory cards so you can get the best results on every use.

OWC Innergize - Field Upgrade

Field Upgrade

When new cameras or firmware updates to existing cameras are introduced, they may not work properly with flash memory cards and drives. Innergize gives OWC memory card users the ability to quickly upgrade their firmware in the field for full compatibility, additional performance enhancements, and bug fixes for optimal reliability.

OWC, Trusted by Pros & Enthusiasts the World Over

OWC, Trusted by Pros & Enthusiasts the World Over

We build our hardware to the highest standards of reliability and performance. Because 100% reliability is always the goal, we rigorously quality test and back our hardware with a 3 Year OWC Limited Warranty and award-winning customer support.

Learn More
  1. Over 1700MB/s write / over 1850MB/s read peak performance and 400MB/s minimum sustained write performance was observed based on testing OWC Atlas Pro CFexpress 4.0 Type A cards on a Windows 11 computer with AMD Ryzen 9 processor mounted on a Gigabyte Technology x570 Aorus Master motherboard with 32GB of RAM. Performance will vary depending on host hardware, software, usage, and Atlas Pro CFexpress 4.0 Type A card storage capacity used.