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OWC Atlas Ultra CFexpress

High-performance, highest quality memory card for the most demanding video recording uses of professional filmmakers and continuous burst mode shooting by advanced photographers.

Guaranteed Minimum

1300MB/s

Sustained Write Speed

Compatible with

Cinema

Cameras

Up to

8K RAW

Video Recording

Ultimate Continuous

Burst

Photo Shoots

165GB

Only $174.99

325GB

Only $399.99

650GB

Only $739.99

The Fastest, Most Reliable CFexpress Card

When you need the fastest, most reliable CFexpress card, the Atlas Ultra CFexpress is ready to take you to the edge. With incredibly high 1300MB/s minimum sustained write speeds, this is the perfect 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.

A 165GB capacity version is ideal for advanced sports and wildlife photographers seeking the fastest, most cost-effective solution to clear their camera buffer and/or shoot continuously in ultra-high resolution burst mode.

Compatibility You Can Count On

recommended
compatible
compatible, but not at highest resolution settings
128GB OWC Atlas Pro CFexpress Memory Card
256GB OWC Atlas Pro CFexpress Memory Card
2TB OWC Atlas Pro CFexpress Memory Card
560GB OWC Atlas Ultra CFexpress Memory Card

Atlas Pro CFx

Atlas Pro CFx

Atlas Pro CFx

Atlas Ultra CFx

Capacity

128GB

256GB

512GB - 2.0TB

165GB - 650GB

Max sequential read

1700MB/s

1700MB/s

1700MB/s

1700MB/s

Max sequential write

1400MB/s

1400MB/s

1500MB/s

1500MB/s

Min sustained write

140MB/s

300MB/s

400MB/s

1300MB/s

Canon C300 Mark III

Canon C500 Mark II

Canon 1DX Mark III

Canon EOS R3

Canon EOS R5

Canon EOS R5C

DJI Ronin 4D Cinema 6K (325GB, 650GB cards)

Fujifilm X-H2

Fujifilm X-H2S

Nikon Z9

Nikon Z6 / Z7

Nikon Z6 II / Z7 II

Nikon D500

Nikon D850

Nikon D5

Nikon D6

Panasonic GH6

Panasonic S1 / S1R

PhaseOne XF IQ4

RED Approved

RED V-Raptor (325GB, 650GB cards)

RED V-Raptor XL (325GB, 650GB cards)

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

Up to 1500MB/s write and 1700MB/s read real-world speeds for the most advanced use cases including fast burst RAW image sequences and high-bitrate video recording up to 8K 1

Dependable

Delivers 1300MB/s minimum sustained write speed

Compatible

Fully compatible with a wide variety of DSLR and mirrorless cameras

Compliant

Fully meets CFexpress Type B 1.0 and 2.0 specifications

Tough

Impact, bend, shock, ESD, UV ray, and x-ray resistant

Worry-free

3 Year OWC Limited Warranty

Shoot, Store, and Swap… 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

Up to

1500MB/s

Write Speed

Up to

1700MB/s

Read Speed

Guaranteed Minimum

1300MB/s

Sustained 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 Ultra CFexpress cards for reliable peak performance up to 1500MB/s write, 1700MB/s read, and 1300MB/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.

Get Maximum Performance from Your Atlas Ultra CFexpress Cards

Details matter when it comes to obtaining the highest performance from your CFexpress card. Only use a high-quality CFexpress Type B memory card reader such as the OWC Atlas FXR that has been specifically designed and extensively test proven to deliver effective heat dissipation so your memory card will deliver maximum sustained throttle-free performance.

If you must use a camera or reader that doesn’t dissipate heat effectively, Atlas Ultra CFexpress cards have built-in protection that automatically reduces speed to prevent heat damage while ensuring a safe to handle temperature.

OWC Atlas Ultra CFexpress Memory Card + OWC Atlas FXR Reader - HD Speed Test screenshot

After intensive stress tests with multiple full capacity cycles, the Atlas FXR reader still delivers consistent sustained 1400MB/s read and 1200MB/s write performance from a 650GB Atlas Ultra CFexpress card while maintaining a safe temperature.

OWC, Trusted by Pros & Enthusiasts the World Over

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.

Learn More
  1. Up to 1500MB/s write / up to 1700MB/s read peak performance and 1300MB/s minimum sustained write performance was observed based on testing OWC Atlas Ultra 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). Performance will vary depending on host hardware, software, usage, and Atlas Ultra CFexpress card storage capacity used.