Plug-and-play multi-format card reader for SDHC and SDXC, microSD, and CompactFlash cards Works with UHS-II, UHS-I and non-UHS SD and microSD cards and CompactFlash cards up to UDMA 7 Fast transfer speeds of up to 312MB/s for SD and microSD cards, up to 160MB/s for CompactFlash cards USB 3.0 interface can move content up to 10x faster than USB 2.0 interface, backwards-compatible with USB 2.0 Works with Windows and Mac computers