CFexpress Type B

Atlas Pro & Atlas Pro Ultra

Premium, high capacity CFexpress Type B Media Cards for speedy RAW image + up to 8K video capture.

Atlas Pro & Atlas Pro Ultra CFexpress Cards

Unleash Your Potential with Professional-Grade CFexpress Card Performance

  1. Pro speed: Up to 1668MB/s write and 1791MB/s read peak speeds for smooth 8K capture and continuous high frame rate burst mode image capture
  2. Advanced: utilizes the latest flash storge technologies to provide leading-edge performance, durability, and reliability
  3. Efficient: fast write speeds let you offload data to computer for immediate file access and quicker post-production
  4. Tough: Impact, bend, shock, UV ray, and x-ray resistant
  5. Supported: fully compatible with the latest Canon, Nikon, and Panasonic cameras
  6. Backwards compatible: with XQD devices
  7. Compliant: fully meets CFexpress Type B 1.0 and 2.0 specification
  8. Worry-free: 5 Year OWC Limited Warranty
OWC Atlas Pro with Camera

Confidently Capture Every Crucial Moment

Just like the Atlas rockets that powered the historic Mercury human spaceflights into full orbit, OWC Atlas Pro CFexpress media cards will launch your creative capabilities into a new world. Rugged and OWC Beyond Fast™, these cards are ideal for professional photographers, videographers and content creators. OWC Atlas Pro CFexpress cards are the perfect solution for reliably capturing RAW images and up to 8K footage of fast-moving sports, nature, and other action scenes in demanding locations.

Built for Pros by the Flash Pros

Drawing on our experience as a leading developer of flash storage since 2010, we’ve engineered Atlas Pro cards with advanced performance and data management technologies. Atlas Pro media cards are built to maximize the capabilities of your DSLR, mirrorless, and video camera. So, you can go from shooting footage to transferring those irreplaceable images to your computer with the highest efficiency possible.

OWC Atlas Pro with ThunderBay Flex 8

Shoot, Store, and Swap… Anywhere

OWC Atlas Pro cards can shrug off the toughest environmental challenges, including x-rays, UV rays, shocks, drops, and extreme temperatures. Go ahead…shoot, store, and swap with total peace of mind. Atlas Pro cards have your work – and your back – well protected.

OWC Atlas Pro CFexpress Cards & Photos
Burst Photos

Burst Away

When your subject is fast-moving action with the story best told by multiple images, Atlas Pro Ultra is ready for rapid-fire burst mode and high resolution 8K video capture. It offers sustained 1392MB/s (640GB) or 1490MB/s (320GB) write speed34.5x faster than what 8K capable cameras typically require4 - so you can confidently get every crucial moment at one-time events like sports, weddings, and concerts.

Which OWC Atlas Pro CFexpress Card Is Right for You?

OWC Atlas Pro OWC Atlas Pro Ultra
OWC Atlas Pro OWC Atlas Pro Ultra

Typical User

Creative Professionals

Pro Photographers

Primary Use: broad range of still and moving image capture applications

Check Check

Primary Use: high resolution video capture and long, sustained burst image capture applications


Continuous/Burst Mode Capable


Over 1390MB/s sustained write speeds3

Peak Data Rates

Read: 1791MB/s
Write: 1669MB/s

Read: 1791MB/s
Write: 1668MB/s

OWC Limited Warranty

3 Years

5 Years

Compatible with:

Canon – C300 MkIII, C500 MkII, 1DX MkIII, 1DX MkIII, EOS R3, EOS R5, EOS R5C
Nikon – Z95, Z6/Z7 II, Z6 II/Z7 II, D5006, D8506, D5, D6
Panasonic – GH6, Lumix DC-S1, S1/S1R
Phase One – XF IQ4

Check Check
  1. Up to 1791MB/s read and up to 1669MB/s write (max) performance was observed based on testing OWC Atlas Pro CFX cards in a PCIe card reader connected to a Windows 10 Pro PC equipped with a ASRock H270M Pro4 motherboard with an Intel Core i7-7700 4.2GHz processor and 32GB RAM running CrystalDiskMark 6.02, 1GB range, QD=32T1. Performance will vary depending on host hardware, software, usage, Atlas card model, and Atlas card storage capacity used.
  2. Compatible with XQD devices that have had their firmware updated to support CFexpress media.
  3. 1392MB/s (640GB) and 1490MB/s (320GB) sustained write performance was observed based on testing OWC Atlas Pro Ultra 640GB and 320GB cards with a Windows 10 Pro PC equipped with a PCIe CFexpress card adapter, ASRock H270M Pro4 motherboard with an Intel Core i7-7700 4.2GHz processor and 32GB RAM running HD_Speed (8MB Block size, write test, lowest speed recorded during the first entire fill of card). Performance will vary depending on host hardware, software, and card used.
  4. Compared to Canon EOS-1D X Mark III and Canon EOS R5 8K RAW minimum bitrate of 325MB/s.
  5. OWC Atlas Pro is compatible with Nikon Z9, but does not support highest camera resolution settings. OWC Atlas Pro Ultra fully supports highest camera resolution settings.
  6. Originally supported XQD, later received firmware update to provide CFexpress media support.