Digipower DP-FCR31 66 in-1-card Reader/Writer for CF, MS, SD, Micro SD, XD and Smart Card, Sim Card (6 Slot) Self Powered card reader/writer USB Transfer rate up to 480 Mbps Backward Compatible to USB 1.1 Transfer rate up to 12 Mbps Sleek Design with LED indicators for Power On and Card Reader Access Compatible with Windows and Mac OS