Sony MRW-S1 UHS-II SD Card Reader

The MRW-S1 is a compact USB reader for UHS-II SD cards. Many built-in and budget readers fall back to UHS-I speeds; this one supports the UHS-II bus over SuperSpeed USB 3.1 Gen 1, so Sony's SF-G and SF-M cards back up at the rate they were bought for. It is aimed squarely at high-resolution stills and 4K video offloads.

The reader has a standard USB Type-A plug and an LED activity indicator, and at 2.26 x 1.25 x 0.44 inches and 0.71 oz it lives in a camera bag. Sony lists support for Windows 7 SP1 through Windows 10 and OS X 10.9 or later.