... ,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 cardBackward compatible with USB 1 ...