Lexar launches its fastest-ever CFexpress Type B card reader, but there's a catch

Lexar Professional CFexpress Type B USB 3.2 Gen 2x2 Reader
(Image credit: Lexar)

Lexar has released a new super-fast memory card reader exclusively for CFexpress Type B cards. Its big selling point is its USB 3.2 Gen 2x2 interface, which enables transfer speeds up to twice as fast as a USB 3.2 Gen 2 card reader. That might just sound like marketing hyperbole, but in the case of the best CFexpress cards, you really do need that extra data bandwidth to exploit their maximum read/write speeds.

Thanks to its new super-fast USB connection, the Lexar Professional CFexpress Type B USB 3.2 Gen 2x2 Reader boasts read speeds of up to 1700MB/s - enough to genuinely max out a CFexpress type B card in a way almost no other reader can. Included with the reader is a 30cm 2-in-1 USB Type-C to USB Type-A cable, as well as a USB Type-C to Type-C cable.

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USB naming and speed comparison
Current namePreviously calledSpeed (theoretical max)
USB 4N/A40Gbps (5000MB/s)
USB 3.2 Gen 2x2N/A20Gbps (2500MB/s)
USB 3.2 Gen 2USB 3.1 Gen 2, USB 3.110Gbps (1250MB/s)
USB 3.2 Gen 1USB 3.1 Gen 1, USB 3.05Gbps (625MB/s)

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Ben Andrews

Ben is the Imaging Labs manager, responsible for all the testing on Digital Camera World and across the entire photography portfolio at Future. Whether he's in the lab testing the sharpness of new lenses, the resolution of the latest image sensors, the zoom range of monster bridge cameras or even the latest camera phones, Ben is our go-to guy for technical insight. He's also the team's man-at-arms when it comes to camera bags, filters, memory cards, and all manner of camera accessories – his lab is a bit like the Batcave of photography! With years of experience trialling and testing kit, he's a human encyclopedia of benchmarks when it comes to recommending the best buys.