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Lexar CFexpress Type B 128GB Card Review

The CFexpress Type B card comes in a box far bigger than the card, with an image of the card on the front. Under the image are symbols for CFexpress Type B and RAW 4K. At the bottom end of the front panel are the speed ratings for the drive; up to 1,750MB/s transfer and up to 1,000MB/s writes. The tab at the top of the box displays the drive’s capacity.

The rear of the box sees these speed ratings repeated at the top, while making up the bulk of the text on the box rear are multilingual descriptions of the drives ability to capture high-quality images and RAW 4K video. There’s also a logo displaying the lifetime warranty the card is backed by.

The drive has an aluminium chassis and measures 29.60 x 38.50 x 3.80 mm, the same as an XQD card and weighs in at 7.65g.


To help test the card, Lexar kindly provided us with another one of their recent introductions, the Professional CFexpress USB 3.1 card reader. The compact new reader has been designed to work with CFexpress Type B cards and supports read/write speeds of up to 1,050MB/s using a USB 3.1 Gen 2 interface.

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