In this test, we used a series of different CFExpress cards connected to firstly a MacBook Pro M1 Max and then Intel Ghost Canyon by means of the intergrated Thunderbolt ports. Although both machines offer Thunderbolt ports rather than USB 3.2 these are fully compatible with USB 3.2 devices.
On plugging in the card reader and cards were instantly recognised by the machines and software.
Copying files proved that Sabrent’s stated max transfer speed for the card reader were close. Using Sabrent’s own CFExpress 512GB card and testing using the Blackmagic Disk Speed Test the reader and card combo put in a solid performance offering fast read speeds and decent write speeds. However, to test the drive’s performance, I tested the reader with a high-speed CFExpress card that offered transfer speeds that far exceeded the transfer speeds of USB 3.2.
Here the results were excellent, with the reader and card providing transfer speeds of 905MB/s, a little shy of the max 950MB/s but still not at all bad. In real terms, that enables the transfer of 140GB of data to the computer in around four and a half minutes.
Away from the speed, the other major point of the Sabrent CFExpress B Reader is the build quality. The aluminium case and tough frame that supports the construction, along with the minimalistic black finish, make this reader feel like a device that will be with you for years.