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Rectangular CFexpress Type B memory card, matte black finish with silver label, 512GB capacity

OWC

OWC Atlas Pro CFexpress 4.0 Type B 512GB Memory Card

SKU CH-A6NX-7XZCR

CFexpress 4.0 Type B card delivering 3650MB/s read and 3000MB/s write for 6K video and fast RAW bursts

  • Card typeFull Size SD
  • TypeCFExpress
  • Capacity512GB
  • OptionN/A
  • Up to 3650 MB/s read speed accelerates ingest of large RAW files
  • Up to 3000 MB/s write speed sustains 6K high-bitrate video capture
  • CFexpress 4.0 / 2.0 / 1.0 compliant for broad camera compatibility
  • Impact, bend, shock, ESD, UV and X-ray resistant for rugged field use
  • 512 GB capacity fits extended shoots on updated XQD or CFexpress Type B bodies

Atlas Pro CFexpress 4.0 Type B 512GB

The OWC Atlas Pro is a CFexpress 4.0 Type B memory card with 512 GB capacity, designed for professional photographers and filmmakers who need reliable storage for high-resolution capture. It suits workflows that demand fast write speeds for continuous RAW bursts and high-bitrate video recording up to 6K.

Sustained write performance

Real-world speeds reach up to 3000 MB/s write and 3650 MB/s read, allowing the card to maintain throughput during extended shooting sessions rather than only in short bursts. This headroom supports uninterrupted 6K video recording and rapid buffer clearing for fast-action still sequences.

CFexpress Type B interface limits

The card complies with CFexpress Type B 1.0, 2.0 and 4.0 specifications, so its practical ceiling is defined by the host device's controller and firmware rather than the card itself. Cameras limited to earlier CFexpress revisions or XQD slots with firmware updates will not reach the 4.0 maximums.

Points forts

  • Up to 3650 MB/s read speed accelerates ingest of large RAW files
  • Up to 3000 MB/s write speed sustains 6K high-bitrate video capture
  • CFexpress 4.0 / 2.0 / 1.0 compliant for broad camera compatibility
  • Impact, bend, shock, ESD, UV and X-ray resistant for rugged field use
  • 512 GB capacity fits extended shoots on updated XQD or CFexpress Type B bodies

Caractéristiques

Card typeFull Size SD
TypeCFExpress
Capacity512GB
OptionN/A

Questions sur cet article

Does the card run hot or draw heavy power when recording 6K video for long sessions?

The CFexpress 4.0 Type B design targets high sustained throughput — up to 3000 MB/s write and 3650 MB/s read — without active cooling, so typical camera bodies handle the thermal load during extended 6K capture.

What must my camera already support for this 512 GB card to work?

The host must accept CFexpress Type B media and run firmware that enables the CFexpress 1.0, 2.0 and 4.0 specifications; XQD-format cameras need a vendor firmware update before they can use this card.

Will this 512 GB Atlas Pro slow down if I keep using my older XQD-slot camera after a firmware update?

The card is fully compliant with CFexpress Type B 1.0, 2.0 and 4.0, so it negotiates the highest speed the updated XQD host allows — up to 3000 MB/s write and 3650 MB/s read — without artificial throttling.

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