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Rectangular CFexpress Type B card, black finish, 1TB capacity label

OWC

OWC Atlas Ultra CFexpress 4.0 Type B 1TB Memory Card

SKU CH-7E8C-XEEDF

High-performance CFexpress 4.0 Type B card delivering up to 3650MB/s read and 3000MB/s write speeds for 8K+ video and fast burst RAW capture

  • Card typeFull Size SD
  • TypeCFExpress
  • Capacity1TB
  • OptionN/A

Capacity 1TB

  • Sustained 1500MB/s write keeps 8K RAW recording stable
  • Peak 3650MB/s read and 3000MB/s write accelerate burst RAW workflows
  • CFexpress 4.0 Type B compliance ensures broad camera compatibility
  • Impact, shock, ESD, UV and X-ray resistance protects data in harsh conditions
  • RED-approved for V-Raptor and V-Raptor XL cinema cameras

Pro-grade CFexpress 4.0 Type B card

The OWC Atlas Ultra is a 1TB CFexpress 4.0 Type B memory card built for professional filmmakers and advanced photographers who need reliable media for high-bitrate 8K video and fast RAW burst sequences. It meets CFexpress 1.0, 2.0 and 4.0 specifications and works with a wide range of DSLR, mirrorless and cinema cameras.

Silent solid-state operation

As a solid-state memory card it has no moving parts, produces no audible noise and draws power only from the host camera slot during read or write activity. The card is rated for impact, bend, shock, ESD, UV and X-ray resistance, so it maintains consistent electrical performance in harsh shooting environments.

Sustained 1500MB/s write under load

The card guarantees a minimum sustained write speed of 1500MB/s, allowing extended 8K RAW recording and long continuous bursts without speed drops that can cause dropped frames or buffer overflows. Peak rates reach 3000MB/s write and 3650MB/s read for short bursts, but the sustained figure is the one that matters for prolonged professional workloads.

Points forts

  • Sustained 1500MB/s write keeps 8K RAW recording stable
  • Peak 3650MB/s read and 3000MB/s write accelerate burst RAW workflows
  • CFexpress 4.0 Type B compliance ensures broad camera compatibility
  • Impact, shock, ESD, UV and X-ray resistance protects data in harsh conditions
  • RED-approved for V-Raptor and V-Raptor XL cinema cameras

Caractéristiques

Card typeFull Size SD
TypeCFExpress
Capacity1TB
OptionN/A

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3 de plus dans cette gamme

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Questions sur cet article

How is the CFexpress 4.0 Type B card installed in a camera, and what step do people often miss?

Insert the card into the camera's CFexpress Type B slot with the label facing the correct direction until it clicks; the step often missed is formatting the card in-camera before first use to ensure the filesystem matches the camera's requirements.

What maintenance or replacement will this 1TB card need over time?

No scheduled maintenance is required; the card is impact, bend, shock, ESD, UV and x-ray resistant. Replace it if sustained write speeds drop below 1500MB/s or if the camera reports media errors.

What limit appears first during sustained 8K RAW recording on this card?

The minimum sustained write speed of 1500MB/s is the limiting factor; the card guarantees at least this throughput, so any codec or bitrate exceeding it will be the bottleneck.

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