Name: 256GB OWC Atlas Core CFexpress 4.0 Type B Memory Card
Brand: OWC
SKU: OWCCFXB4C00256
Price: 279.99 USD
Availability: InStock

OWC Atlas Core CFexpress

Reliable speed and real value for photographers and content creators.

Shoot more. Spend less. Miss nothing.

Not every shooter needs the highest performance card on the shelf, but you do need a card you can count on for every shot. The OWC Atlas Core CFexpress 4.0 Type B card is built for you: the hobbyist stepping up your game, the event photographer who shoots all day, the vlogger who needs gear that just works.

With up to 3571MB/s read, 2227MB/s write, and 368MB/s sustained write speeds going beyond the VPG200 certification, Atlas Core lets you everything from high-burst RAW photography to 4K video and up to 8K compressed video without dropped frames. Add Innergize™ software for card health monitoring, performance restoration, and firmware updates, and you’ve got a card built to stay reliable shoot after shoot.

When you want a CFexpress Type B memory card that delivers an unmatched combination of essential performance, real value, and It Just Works™ reliability, Atlas Core is the card you need.

Quality In = Quality Output

Thanks to an extremely thorough quality control process, you can work fearlessly knowing that your Atlas Core 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. Atlas Core is built to deliver when it matters, shoot after shoot.

Ultra-Speed

With up to 3571MB/s read, 2227MB/s write, and 368MB/s sustained write speeds, you can capture RAW bursts, high-res stills, uninterrupted 4K video, and up to 8K compressed video without dropped frames.¹

Built For your Toughest Shoots

Resistant to impact, bending, shock, UV, x-rays, and static discharge so you can shoot confidently in challenging conditions and on location

Keep Your Workflow Moving

Spend less time waiting and more time shooting with high-speed offloads that minimize downtime between sessions

Works with Your Cameras

Compatible with Canon R-series, Nikon Z, and Panasonic S-series mirrorless cameras, plus Nikon DSLR owners (D5, D500, D850) upgrading from XQD

Future-Proof Compatibility

CFexpress 4.0 compliant and backward compatible with 1.0 and 2.0 devices, so your card works with your current and future gear. VPG certification ensures full compatibility with the increasing number of cameras requiring VPG rated cards

Assured Confidence with Innergize™

No more worries because Atlas cards feature Innergize Optimization Technology. Now you can easily monitor card condition and lifespan, restore peak performance, and update firmware to maintain camera compatibility

VPG Certified Performance

VPG200 rating ensures consistent speed across the card’s entire capacity

Shoot, Store, and Swap… Anywhere

Atlas Core 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 Core CFexpress cards have your work and your back well protected.

OWC Atlas Core CFexpress Memory Cards on desktop with camera and Mac mini

Who is it for?

Photo and video creators from enthusiast to working professional
Travel, lifestyle, event, and portrait photographers shooting RAW
Vloggers and solo content creators shooting 4K and up to 8K compressed video
Canon R, Nikon Z, and Panasonic S-series mirrorless shooters
Nikon DSLR owners (D5, D500, D850) upgrading from XQD to CFexpress Type B
Any shooter who wants pro-grade reliability with value pricing

What is it for?

Capturing a couple’s first dance—and every moment leading up to it—without missing a frame
Burning through a full day of event or portrait shooting without slowing down
Shooting a travel vlog across multiple locations in a day
Recording 4K and up to 8K compressed video for YouTube, social media, or corporate video
Any shoot where you need a card you can trust

Truth in Numbers

Up to 3571MB/s Write Speed

Up to 2227MB/s Read Speed

Sustained 368MB/s 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 Core CFexpress cards for reliable peak performance up to 3571MB/s read, 2227MB/s write, and 368MB/s sustained write speeds 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’s Atlas Core CFexpress 4.0 Cards

Details matter when it comes to making an investment into a memory card for your camera. That is why the Atlas Core CFexpress 4.0 card leverages the CFA 4.0 specification that is backward compatible with CFA 2.0 (i.e. PCIe Gen3) cameras and readers for 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.

OWC Atlas Core CFexpress Memory Card HD_Speed screenshot 1

OWC Atlas Core CFexpress Memory Card HD_Speed screenshot 2

OWC Atlas Core CFexpress Memory Card CrystalDiskMark screenshot

Access Your Drives Anywhere with Strada. No Cloud Required.

Receive 2 Strada licenses for 90 days (a $180 value) with your purchase.

Strada turns your storage solution into a serious archival library at a fraction of what you would pay for equivalent cloud storage. With Strada (strada.tech), your remote team members can access, share, review, and edit files as if this drive was sitting right next to them. No costly cloud subscription. No time-consuming uploads. No shipping drives back and forth. Just because your hardware must stay in your studio doesn’t mean your files have to. Every qualifying OWC drive ships with Strada licenses included for 3 months, so your team can be working together the day it arrives.

Learn More »

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

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.

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.

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.

Discover the OWC Difference

Since 1988, our mission has focused on maximizing the usefulness and longevity of your technology investment. Our business operations share that same sustainability commitment. As the first 100% on-site wind powered technology manufacturer/distributor in the U.S., we now generate excess power. 97% of solid waste is recycled. These and other actions have resulted in our headquarters being Energy Star® and LEED® Platinum certified. Learn more about our passion for the planet we share at macsales.com/green

Up to 3571MB/s sequential read, 2227MB/s sequential write, and 368MB/s sustained write performance. Measured on a Windows 11 computer with AMD Ryzen 9 processor mounted on a Gigabyte Technology x570 Aorus Master motherboard with 32GB of RAM.