Pro CFexpress 4.0 Type B
Cost-effective, highest quality memory card for the most demanding needs of professional photographers and the most common use cases of professional filmmakers
Choose Your Capacity
Awesome Professional Performance Made Affordable
When you want a CFexpress Type B memory card that checks all the boxes for all the most common professional workflow needs, Atlas Pro CFexpress is your cost-effective choice. You'll enjoy awesome performance for the most demanding photo projects including intermediate action sports and wildlife photos. Capture up to 6K high bitrate video. Whether you're a photographer using a firmware updated XQD camera and only need modest storage or are a filmmaker using the latest camera, there's an Atlas Pro CFexpress card in the optimal capacity for your specific need.
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. The Atlas Pro CFexpress is the difference-maker for your high-end workflows and maximum camera setting uses.
- Pro speedUp to 1500MB/s write and 1700MB/s read real-world speeds for the most advanced uses cases including fast burst RAW image sequences and high bitrate video recording up to 6K 1,2
- CompatibleFully compatible with a wide variety of DSLR and mirrorless cameras
- CompliantFully meets CFexpress Type B 1.0 and 2.0 specifications
- Effective128GB and 256GB capacities for XQD format cameras that have been updated to support CFexpress
- ToughImpact, bend, shock, ESD, UV ray, and x-ray resistant
- Worry-free3 Year OWC Limited Warranty
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. Go ahead…shoot, store, and swap with total peace of mind. Atlas Pro CFexpress cards have your work – and your back – well protected.
Technical Specifications
| Capacity | 256GB – 512GB |
| Generation | CFexpress 4.0 |
| Max sequential read | 3650 MB/s |
| Max sequential write | 3000 MB/s |
| Min sustained write | 800 MB/s |
Truth in Numbers
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 cards for reliable peak performance up to 3000MB/s write, 3650MB/s read, and up to 800MB/s sustained write speed defines our commitment to the "OWC Difference," which ensures these CFexpress Type B cards will deliver the performance you are counting on
Maximum Sequential and Sustained Read/Write Performances Delivered by OWC Atlas Pro CFexpress 4.0 Cards
Details matter when it comes to making an investment into a memory card for your camera. That is why OWC Atlas Pro CFexpress 4.0 cards leverage the CFA 4.0 specification that is backward compatible with CFA 2.0 (i.e. PCIe Gen3) cameras and readers of today, and forward compatible with CFA 4.0 (i.e. PCIe Gen4) cameras and readers of the future delivering the highest performance that you deserve.
Over 3700MB/s and 3000MB/s sequential read and write and 3300MB/s and 800MB/s sustained read and write performance from a 256GB Atlas Pro CFexpress 4.0 card measured on a Windows 11 computer with AMD Ryzen 9 processor mounted on a Gigabyte Technology x570 Aorus Master motherboard with 32GB of RAM.
CFexpress 4.0 vs CFexpress 2.0
| CFexpress 4.0 256GB – 512GB |
CFexpress 2.0 128GB – 256GB |
CFexpress 2.0 512GB – 2.0TB |
|
|---|---|---|---|
| Generation | CFexpress 4.0 | CFexpress 2.0 | CFexpress 2.0 |
| Max sequential read | 3650 MB/s | 1700 MB/s | 1700 MB/s |
| Max sequential write | 3000 MB/s | 1400 MB/s | 1500 MB/s |
| Min sustained write | 800 MB/s | 140 MB/s (128GB) / 300 MB/s (256GB) | 400 MB/s |
Compatibility You Can Count On
Blackmagic
Canon
Fujifilm
Leica
Nikon
Panasonic
PhaseOne
RED
Sony
**With Sony Burano, Card is fully compatible, but camera will report card as "unsupported media."
Who & What It's For
Who is it for?
- Intermediate action sports photographers
- Intermediate outdoor/wildlife photographers
- Individual pro photo / video creatives with advanced capabilities
- Film production companies
What is it for?
- Capturing the winning play of the game in clear detail
- Creating a freeze-frame sequence of a cheetah running down prey
- Branded, huge following influencers needing to create enhanced, professional-looking content for their channels
- Product photo shoots
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.
Not sure which card your camera needs?
Tell us your camera and workflow and our certified technicians will recommend the right OWC Atlas card. Email helpdesk@macfixit.com.au.
¹ Up to 3000MB/s write / up to 3650MB/s read peak performance was observed based on testing OWC Atlas Pro CFexpress cards in an Ableconn PEX-CF106 Adapter Card in a Gigabyte Aorus Master X570 motherboard with an AMD Ryzen 9 5950X 4.9GHz CPU and 32GB RAM, in Windows 10 Pro using Crystal Disk Mark (1GB file size). Sustained write speeds up to 800MB/s were observed. Performance will vary depending on host hardware, software, usage, and Atlas Pro CFexpress card used.
² Up to 1500MB/s write / up to 1700MB/s read peak performance was observed based on testing OWC Atlas Pro CFexpress cards in an Ableconn PEX-CF106 PCI Express 3.0 x4 Host Adapter Card in a Gigabyte Aorus Master X570 motherboard with an AMD Ryzen 9 5950X 4.9GHz CPU and 32GB RAM, in Windows 10 Pro using Crystal Disk Mark (1GB file size). Sustained write speeds up to 140MB/s for the 128GB card, up to 300MB/s for the 256GB card, and up to 400MB/s for the 512GB-2TB cards was observed. Performance will vary depending on host hardware, software, usage, and Atlas Pro CFexpress card storage capacity used.
³ Atlas Pro CFexpress cards in 512GB and higher capacities are recommended for 6K video recording.