CFexpress Type B Card Reader and M.2 SSD Adapter - 40Gbps USB4

In this review the Unitek CFexpress Type B card reader and M.2 SSD adapter stands out as a practical tool for professional photographers and videographers who need extremely fast file offloads on the road. The single biggest reason to buy is its use of USB4.0 with PCIe42 transmission, which enables up to 40Gbps transfers for CFexpress Type B cards and supports M.2 PCIe NVMe drives up to 2280, so lengthy media downloads become much less of a bottleneck when moving large video files or high-resolution photo shoots.

Key Features

• Ultra Speed 40Gbps: Provides up to 40Gbps transfer rates using USB4.0 and PCIe42, reducing wait times for large video and photo files.
• 2-in-1 Design: Combines a CFexpress Type B reader and an M.2 PCIe NVMe adapter in one compact unit so you can handle both card and SSD workflows with a single device.
• M.2 Size Support: Accepts M.2 PCIe & NVMe 2230/2242/2260/2280 drives, giving flexibility to use common SSD sizes for direct file access.
• Cross-Platform Compatibility: Works plug-and-play with Windows 10/11, Mac, Linux, Android and macOS so it fits into diverse editing setups without drivers.
• Durable Aluminum Housing: The aluminum alloy enclosure improves heat dissipation and offers a sturdy portable design for travel and field use.
• Simultaneous Dual-Card Reading: Can read a CFexpress card and an M.2 SSD together when both are inserted before power on, enabling faster workflows with two storage sources.

Who It's For

The reader is aimed at professional filmmakers, hybrid shooters and content creators who routinely move very large raw or video files and need the highest available transfer speeds outside of camera-to-computer direct capture. Its support for CFexpress Type B and full-size NVMe M.2 drives makes it a true field tool for those using modern cinema and mirrorless cameras.

Those who should look elsewhere include casual photographers who mainly use SD cards or users who do not own CFexpress or NVMe storage; the device's benefits are most obvious when paired with high-performance cards and SSDs.

Pros & Cons

Pros

• Very high transfer speeds up to 40Gbps for CFexpress Type B using USB4.0 and PCIe42.
• Flexible 2-in-1 functionality that supports CFexpress cards and M.2 PCIe NVMe SSDs in one compact unit.
• Wide compatibility across Windows, macOS, Linux and Android with plug-and-play operation.
• Durable aluminum construction that helps with heat dissipation under heavy use.

Cons

• To read both CFexpress and M.2 simultaneously, both must be inserted before powering the device, which is a workflow constraint to note.
• The speed advantage requires CFexpress Type B or high-end NVMe drives to be realized; slower media will not benefit as much.

Specifications

Interface	USB4.0 with PCIe42 transmission
Max Transfer Speed	Up to 40Gbps for CFexpress Type B
Card Support	CFexpress Type B
M.2 Support	PCIe & NVMe 2230/2242/2260/2280
Compatibility	Windows 10/11, macOS, Linux, Android
Housing	Aluminum alloy enclosure

Our Verdict

The Unitek CFexpress Type B and M.2 SSD adapter is a strong choice for professionals who need a compact, durable device that delivers real time savings through ultra-fast 40Gbps transfers. It offers excellent cross-platform support and flexible media handling, making it good value for creators who rely on CFexpress or NVMe storage and want a single tool to simplify offloads and backups.

Frequently Asked Questions

Can the reader use both CFexpress and M.2 at the same time?
Yes; it supports simultaneous reading of CFexpress Type B and an M.2 SSD when both are inserted before powering on the device.

Does it require drivers to work?
No; the unit is plug-and-play and does not require additional drivers for supported operating systems.

What M.2 sizes are supported?
It supports M.2 PCIe & NVMe sizes 2230, 2242, 2260 and 2280.