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ProGrade Digital USB 4.0 CFexpress Type B Reader

ProGrade Digital USB 4.0 CFexpress Type B Reader

ProGrade Digital PG05.6

ProGrade Digital PG05.6

Type

Professional Hub

Max Speed

1700 MB/s (CFexpress B)

Interface

USB 4.0 (40Gbps)

Price Tier

$$

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Who Is This For?

Thunderbolt 3 readers top out at 800 MB/s because they are USB 3.2 Gen 2. This USB 4.0 reader actually lets CFexpress Type B cards reach their full 1700 MB/s potential. For wedding and event shooters with multiple R5s, this cuts import time in half.

Pros & Cons

Pros

  • Unlocks true 1700 MB/s CFexpress B speeds with USB 4
  • 0
  • 5000 MB/s spec rated
  • Active cooling prevents thermal throttling during large imports
  • Magnetic base keeps it stable

Cons

  • Fan noise during operation
  • USB 4
  • 0 port required (not all laptops)
  • Expensive

Full Specifications

Brand ProGrade Digital
Model PG05.6
Type Professional Hub
Interface USB 4.0 (40Gbps)
Supported Slots CFexpress Type B, SD UHS-II
Max Speed 1700 MB/s (CFexpress B)
Transfer Rate 40Gbps
Price Tier Premium

Device Compatibility

Works With

Canon EOS R5, Canon EOS R3, Nikon Z9, Nikon Z8, MacBook Pro M3/M4

OS Support

macOS, Windows

Frequently Asked Questions

How is USB 4.0 different from Thunderbolt 3?

USB 4.0 uses 40Gbps bandwidth (Thunderbolt 3 is 40Gbps too, but capped via USB 3.2 bridge). This ProGrade reader is a true USB 4.0 device, allowing CFexpress cards to reach 1700 MB/s theoretical, vs 800 MB/s on Thunderbolt 3 readers.

What real-world speeds should I expect?

Sustained speeds of 1400-1600 MB/s with fast CFexpress Type B cards. A 256GB card transfers in approximately 2.5-3 minutes. Speed is limited only by card write speed, not the reader.

Do I need USB 4.0 or does Thunderbolt 3 work?

USB 4.0 is strongly recommended for CFexpress workflows. If your Mac has Thunderbolt 3 only, the PG05.5 (older model) is sufficient at 800 MB/s. MacBook Pro M3/M4 has Thunderbolt 4, which is compatible with USB 4.0 devices.

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Perfect For These Devices

Based on our compatibility testing, the ProGrade Digital USB 4.0 CFexpress Type B Reader works excellently with: