Iogear GFR202SDW6 USB 2.0 Memory Card Reader/Writer USB Specification - USB 1.1 and 2.0 compliant Operating Temperature - - 40 ~ + 176 ?F (- 40 ~ + 80 ?C) Storage Temperature - + 32 ~ + 158 ?F ( 0 ~ + 70 ?C) Transfer Rate - 480 Mbps Ports - 1 x USB 2.0 Connection (Type A)