Generic Wireless 7.2Mbps 3G USB Modem Dongle HSDPA /UMTS GSM/EDGE SIM Stick(Black A) Supports HSDPA/UMTS on 2100 MHzGSM/EDGE on 850/900/1800/1900 MHz. Compatible with Microsoft Windows8/Windows 7/ XP/2000/Vista /Android. Includes microSD memory card slot for accessing optional cards up to 32 GB in size. Recognizes ISP Automatically ,and the operation is simple and convenient. USB Interface: USB 2.0.