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OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card

BH #OWCCFXB4U02 • MFR #OWCCFXB4U02000
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OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card
Key Features
  • 2TB Storage Capacity
  • PCIe 4.0 x2 Bus
  • Max Sequential Read Speed: 3650 MB/s
  • Max Sequential Write Speed: 3000 MB/s
The Atlas Ultra CFexpress 4.0 Type B Memory Card from OWC / Other World Computing features a storage capacity of 2TB and takes advantage of the PCIe bus to support high-bit rate raw video up to 8K, high-resolution raw and JPEG images, and continuous shutter bursts. Designed for pro filmmakers, extreme action photographers, and more, this card features maximum sequential read speeds of 3650 MB/s, maximum sequential write speeds of 3000 MB/s, and sustained write speeds of 1500 MB/s.
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OWC 2TB CFexpress Type B Overview

From Manufacturer

The Atlas Ultra CFexpress 4.0 Type B Memory Card from OWC / Other World Computing features a storage capacity of 2TB and takes advantage of the PCIe bus to support high-bit rate raw video up to 8K, high-resolution raw and JPEG images, and continuous shutter bursts. Designed for pro filmmakers, extreme action photographers, and more, this card features maximum sequential read speeds of 3650 MB/s, maximum sequential write speeds of 3000 MB/s, and sustained write speeds of 1500 MB/s.

To help facilitate card usage in almost any environment, as well as keeping your content safe, OWC built the Atlas Ultra with a rugged design that can withstand impacts, bends, shocks, ESD, UV rays, X-rays, as well as temperatures ranging from 10 to 161°F. To ensure this card may be used with a wide range of devices, OWC built it with support for CFexpress 4.0, 2.0, and 1.0 standards.

OWC Atlas Ultra CFexpress
High-performance, high-quality memory card for the most demanding video recording uses of professional filmmakers and continuous burst mode shooting by advanced photographers.
Fast, Reliable CFexpress Card
When you need a fast, reliable CFexpress card, the Atlas Ultra CFexpress is ready to take you to the edge. With incredibly high minimum sustained write speeds of 1500 MB/s, this is a great media card for pro filmmakers or extreme action photographers to unleash their cameras capabilities.

Professional filmmakers can capture amazingly life-like 8K raw video in slow motion with cinema cameras like the Nikon Z9, Canon R5C, and RED V-Raptor. As a testament to its quality, the Atlas Ultra CFexpress is one of only several media cards that meets RED Digital Cinema's stringent test standards and has been officially approved for use with their RED V-Raptor Cinema camera.
Quality In = Quality Output
Thanks to an extremely thorough quality control process, you can work fearlessly knowing that your Atlas Ultra 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 Ultra CFexpress is the difference-maker for your high-end workflows and maximum camera setting uses.

Ultra Speed
Write speeds up to 3000 MB/s and read speeds up to 3650 MB/s for the most advanced uses cases including fast burst raw image sequences and high bit rate video recording up to 8K.

Compatible
Fully compatible with a wide variety of DSLR and mirrorless cameras.

Tough
Impact, bend, shock, ESD, UV ray, and X-ray resistant.

Dependable
Delivers minimum sustained write speeds of 1500 MB/s.

Compliant
Fully compliant up to CFexpress Type B 4.0 specification and meets Type B 1.0 and 2.0 specifications.

Shoot, Store, and Swap...Almost Anywhere
Atlas Ultra 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 Ultra CFexpress cards have your work, and your back, well protected.
Who Is It For?
  • Advanced action sports photographers
  • Advanced outdoor/wildlife photographers
  • Professional video content creators
  • Film production companies
  • Feature film studios
What Is It For?
  • Capturing a snowboarder doing an aerial trick
  • Capturing a loon landing on a lake
  • Branded, huge following influencers needing to create enhanced, professional-looking
  • content for their channels
  • Capturing highest quality footage for a blockbuster movie
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 OWC takes the extra time to run OWC flash storage solutions through intensive performance testing, and they share their test setup and parameters. Truthfully listing Atlas Ultra CFexpress cards for reliable peak performance with reads up to 3650 MB/s, writes up to 3000 MB/s, and sustained writes of 1500 MB/s define their commitment to the "OWC Difference," which ensures these CFexpress Type B cards will deliver the performance you are counting on.
UPC: 810144629704

OWC 2TB CFexpress Type B Specs

Quantity
1
Card Type
CFexpress Type B
Storage Capacity
2 TB
Bus Type
PCI-Express 4.0
Read Speed
Maximum: 3650 MB/s
Write Speed
Maximum: 3000 MB/s
Sustained: 1500 MB/s
Operating Conditions
10 to 161°F / -12 to 72°C
Storage Conditions
-4 to 185°F / -20 to 85°C
Packaging Info
Package Weight
0.06 lb
Box Dimensions (LxWxH)
4.85 x 4.1 x 0.7"

OWC 2TB CFexpress Type B Reviews

Great

By Mauricio
Rated 5 out of 5
Date: 2026-02-11

Solid. Sturdy. Great transfers. Haven't had a single problem yet. I bought it on a sale, which helped out a lot. Compared to other premium cards, this one was a great deal.

Flawless Performance

By Robert D.
Rated 5 out of 5
Date: 2025-12-15

I exclusively use the OWC 1TB Atlas Ultra CFexpress 4.0 Type B Memory Card in my Nikon Z9 and Z8 for shooting wildlife and travel. At 20 fps for birds in flight, I can quickly go through thousands of images in a good morning. I have found that these memory cards have performed flawlessly.

See any errors on this page?

Is it compatible with the canon r5 mark ll?

Is it compatible with the canon r5 mark ll?
Asked by: Gary
Yes, the OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card is compatible with the Canon EOS R5 Mark II Mirrorless Camera (B&H # CAER52).
Answered by: Marvin C
Date published: 2025-10-24

Will this work with a Nikon Z6 (first ...

Will this work with a Nikon Z6 (first generation)?
Asked by: Samuel
Yes, you can use the OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card with the Nikon Z6.
Answered by: Kenneth C
Date published: 2025-07-20

Does this use 100% (p)SLC NAND—not SLC cache?

Does this use 100% (p)SLC NAND—not SLC cache?
Asked by: Kevin
The manufacture for the OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card does not provide specifications for the memory chips, only for the card.
Answered by: Rob K
Date published: 2023-11-29

Compatible with RED V-Raptor X?

Compatible with RED V-Raptor X?
Asked by: Matthew
The OWC 2TB Atlas Ultra CFexpress 4.0 Type B Memory Card is compatible in the RED V-Raptor X.
Answered by: Rob K
Date published: 2025-01-22

Is it compatible with new SONY Burano?

Is it compatible with new SONY Burano?
Asked by: Orlin
I am planning to record ProRes RAW 5.8K footage internally with the Panasonic LUMIX S1 II. Could you please confirm whether the OWC Atlas Ultra 1TB CFexpress v4 Type B card is fully supported and reliable for this purpose?
Answered by: Takashi
Date published: 2025-09-19

Would this card work in a Canon R5?

Would this card work in a Canon R5?
Asked by: Steven
The OWC 1TB Atlas Ultra CFexpress 4.0 Type B Memory Card is compatible with the Canon EOS R5 Mirrorless Camera (B&H # CAER5).
Answered by: Marvin C
Date published: 2024-08-12

Will this card work in the Fuji X-H2?

Will this card work in the Fuji X-H2?
Asked by: Rick
Yes, the OWC 1TB Atlas Ultra CFexpress 4.0 Type B Memory Card will work in the FUJIFILM X-H2 Mirrorless Camera.
Answered by: Ejona G
Date published: 2025-01-06

Does it work with the DJI 4D-6K?

Does it work with the DJI 4D-6K?
Asked by: Tyler A.
Yes, the DJI Ronin 4D would support card-based memory like the OWC 1 TB Atlas Ultra CFexpress 4.0 Type B Memory Card.
Answered by: Chris H
Date published: 2025-11-11
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