We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • Total capacity512 GB
  • Memory card formatFull Size SD
  • Product typeCFExpress
  • 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.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $337.99
Pricier than about 90% of the 1,947 comparable items (median $46.99).
Total capacity 512 GB
Higher than about 90% of the 1,132 comparable items (median 64 GB).
Price per TB $660.14 per TB
Pricier than about 73% of the 901 comparable items (median $374.69 per TB).

Specifications

Product
Total capacity512 GB
Product typeCFExpress
Storage
Memory card formatFull Size SD

Questions about this item

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.

More in SD & MicroSD Memory Cards

Similar items