card reader,usb card reader,sd card reader,usb promotional gift,USB 2.0 all in one card reader function Key Specifications/Special Features:Provides three ... USB 2.0 ports, multiple memory card reading/writing abilities Supports a data transfer rate of up ... to 480Mbps Supports SD, microSD/T-Flash, SIM,TF,MS/Pro/Duo,M2,Smart ...