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Small rectangular CFexpress Type A memory card, matte black finish, 512GB capacity label

OWC

OWC Atlas Pro CFexpress 4.0 Type A 512GB memory card

SKU CH-DZWZ-EQVTF

CFexpress 4.0 Type A card delivering 1850 MB/s read and 1700 MB/s write with 400 MB/s sustained write for 8K video and fast RAW bursts

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

Capacity 512GB

  • Ready for 8K workflows with 1850 MB/s read and 1700 MB/s write speeds
  • Sustained 400 MB/s minimum write keeps burst shooting smooth
  • VPG200 certification guarantees compatibility with every Sony camera mode
  • CFexpress 4.0 Type A spec doubles 2.0 performance while staying backward compatible
  • Includes Type A to Type B adapter for maximum offload speed with OWC Atlas USB4 reader

Professional CFexpress 4.0 Type A card

The OWC Atlas Pro is a 512GB CFexpress 4.0 Type A memory card built for professional filmmakers, photographers, and videographers. It is designed for Sony Alpha and FX cameras including the a1, a7SIII, a7IV, a7rV, a9III, FX3, FX6, FR7, and FX30. The card delivers up to 1850MB/s read and 1700MB/s write speeds for fast burst RAW sequences and high-bitrate video recording up to 8K. Buyers needing larger capacities or different form factors such as CFexpress Type B native cards are not served by this model.

Thermals noise and power draw

As a solid-state memory card with no moving parts, the Atlas Pro operates silently and generates minimal heat during typical camera use or file offloads. Power is drawn directly from the host device slot or card reader, requiring no external supply. The card is fully compliant with the CFexpress Type A 4.0 specification and meets Type A 2.0 specifications for broad compatibility. No active cooling or noise management is needed in normal operation.

Sustained load behaviour

The card guarantees a minimum sustained write speed of 400MB/s, ensuring consistent performance during extended high-bitrate recording sessions. It is VPG200 certified to work with all Sony camera modes without frame drops. An included Type A to Type B adapter allows maximum offload speed when paired with an OWC Atlas USB4 CFexpress 4.0 Card Reader. The Innergize tool provides health monitoring, performance management, and field firmware upgrades for long-term reliability.

How it compares

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

Price $284.99
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 $556.62 per TB
Pricier than about 67% of the 901 comparable items (median $374.69 per TB).

Specifications

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

Other versions of this model

1 more in the same range

Questions about this item

How do I install the CFexpress 4.0 Type A card and Type A to Type B adapter in my Sony Alpha camera?

Insert the 512GB card label-side up into the CFexpress Type A slot until it clicks; use the included Type A to Type B adapter only when reading with an OWC Atlas USB4 CFexpress 4.0 Card Reader for maximum 1850MB/s read and 1700MB/s write offload speed.

What maintenance will the 512GB CFexpress 4.0 Type A card need over time?

Run the included Innergize tool periodically to check health, apply firmware updates and refresh performance; the card is rated for 400MB/s minimum sustained write speed and VPG200 certification for consistent 8K recording.

What limit appears first during sustained 8K recording on the 512GB CFexpress 4.0 Type A card?

The 400MB/s minimum sustained write speed floor is reached before the 1700MB/s peak, so continuous high-bitrate capture stays stable as long as the camera’s data rate stays at or below 400MB/s.

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