Delkin

Devices USB 3.0 Dual Slot SD UHS-II and CF

£30/$22

www.delkindevices.com This card reader sports the classic combo of SD and Compact Flash slots, both being the fastest of their type – UHS-II and UDMA 7. You can use both together, and the case’s design means a card of each type can be stored inside the reader, protected by a hinged rubber door that closes around them.

The 90cm USB Type-a lead is hardwired to the reader, so while you won’t lose it, it can be slightly awkward for transportation. You’ll also need an adapter to connect this reader to a Type-c based laptop like Apple’s Macbook Pro.

Speed-wise, we could only extract a maximum video read speed of 223Mbps and a 198Mbps write rate from our UHS-II SD card – not awful, but some way short of the Hama, Prograde and Sandisk readers. Image transfer performance is worse: 152Mbps read and 98Mbps write speeds are the slowest of the group. Even with a UHS-I SD card, the Delkin reader struggled: 87Mbps read and 82Mbps write speeds also trail the pack.