OWC
OWC Atlas Ultra 1.0TB High-Performance CFexpress 4.0 Type B Memory Card, up to 3650MB/s Read, for Pro Video and Photo
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies OWC Atlas Ultra 1.0TB High-Performance CFexpress 4.0 Type B Memory Ca… as a category leader on buyer feedback in the accessories category, based on 94 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. OWC's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.7★ average across customer reviews
- ✓ Compliant: fully meets CFexpress Type B 1.0, 2.0 and 4.0 specifications
- ✓ Backed by OWC's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- High-performance, highest quality memory card for the most demanding video recording uses of professional filmmakers and continuous burst mode shooting by advanced photographers
- Ultra speed: up to 3000MB/s write, 3650MB/s read, and 1500 minimum sustained real-world speeds for the most advanced uses cases of professional content creators including fast burst RAW image sequences and high bitrate video recording up to 8K+
- Supportive: fully compatible with a wide variety of DSLR and mirrorless cameras; Cinema and high-end video cameras
- Compliant: fully meets CFexpress Type B 1.0, 2.0 and 4.0 specifications
- Tough: impact, bend, shock, ESD, UV ray, and x-ray resistant; 3 Year OWC Limited Warranty
Full Specifications
| Brand | OWC |
|---|---|
| Color | Purple |
| Tough | impact, bend, shock, ESD, UV ray, and x-ray resistant; 3 Year OWC Limited Warranty |
| Compliant | fully meets CFexpress Type B 1.0, 2.0 and 4.0 specifications |
| Model Name | OWC Atlas Ultra CFexpress |
| Read Speed | 3650 Megabytes Per Second |
| Supportive | fully compatible with a wide variety of DSLR and mirrorless cameras; Cinema and high-end video cameras |
| Unit Count | 1.0 Count |
| Media Speed | Up to 3000MB/s |
| Model Number | OWC Atlas Ultra CFexpress |
| Warranty Type | Limited |
| Mfr Part Number | OWCCFXB4U01000 |
| Flash Memory Type | CFexpress |
| Additional Features | Drop Proof, Max Read Speed: 3650 MB/s, Max Write Speed: 3000 MB/s, Sustained Write Speed: 1500 MB/s, Water Proof, X Ray Proof |
Ready to buy?
OWC Atlas Ultra 1.0TB High-Performance CFexpress 4.0 Type B Memory Card, up to 3650MB/s Read, for Pro Video and Photo is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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