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Space Gray external CFexpress Type B card reader with USB-C cable

OWC

OWC Atlas USB4 CFexpress 4.0 Type B Card Reader OWCTCCFXB4RDR

SKU CH-18YP-XYT77 MPN OWCTCCFXB4RDR

Reads CFexpress 4.0 Type B cards at up to 5000 MB/s via a 40 Gb/s USB4 port with Thunderbolt 4 compatibility

  • Type1 card
  • Slots1
  • Installation TypeExternal
  • ColorSpace Gray
  • Ingest data at up to 5000MB/s maximum speed
  • Achieve over 3300MB/s real-world throughput with Atlas Ultra cards
  • Connect via 40Gb/s USB4 port for broad host compatibility
  • Works with CFexpress 4.0 Type B specification cards
  • Fanless design maintains peak performance without noise

Atlas USB4 CFexpress 4.0 Type B Reader

The OWC Atlas is a single-slot external card reader built for the CFexpress 4.0 Type B specification. It connects via a 40Gb/s USB4 USB-C port and is bus powered from the host. Creative professionals who need to offload high-resolution media quickly will benefit from the streamlined workflow.

Check host port and cable before ordering

Verify that your computer, tablet or smartphone provides a USB-C port capable of USB4 or Thunderbolt data rates to reach the advertised throughput. The included USB-C cable must be used to ensure reliable bus power delivery and signal integrity. Devices limited to slower USB standards will operate at reduced speeds.

Fanless design runs silent under load

A thermally efficient enclosure without moving parts dissipates heat during sustained transfers, keeping the unit quiet in studio environments. Real-world read performance reaches over 3300MB/s with compatible media, peaking at 5000MB/s. An integrated LED confirms active status at a glance.

Highlights

  • Ingest data at up to 5000MB/s maximum speed
  • Achieve over 3300MB/s real-world throughput with Atlas Ultra cards
  • Connect via 40Gb/s USB4 port for broad host compatibility
  • Works with CFexpress 4.0 Type B specification cards
  • Fanless design maintains peak performance without noise

Specifications

Type1 card
Slots1
Installation TypeExternal
ColorSpace Gray
Shipping weight0.36 kg
Package size109 × 109 × 41 mm

Questions about this item

Does the reader come with a cable or do I need to buy one separately?

A USB-C cable is included in the box and the reader is bus-powered via the host port, so no separate power adapter is required.

Should I choose this model if I only use CFexpress Type A cards?

This reader accepts CFexpress 4.0 Type B cards through its single slot; it does not support Type A cards.

What does the 5000MB/s headline speed mean when I plug the reader into my laptop?

Real-world throughput reaches over 3300MB/s when tested with an OWC Atlas Ultra card, limited by the 40Gb/s USB4 connection.

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