Huawei wifi sim card router E5331 blackKey Features: --Wifi 802.11b/g/h--HSPA+/HSPA/UMTS (3G)--EDGE/GPRS/GSM (2G)--HSPA+ Date service up to 21.6Mbps--HSUPA Date service up to 5.76Mbps--Equalizer and receive deiversity --Data and SMS serviceSystem Requirements n Windows XP SP2/SP3 Windows Vista , Sp1/SP2, Windows 7n Mac OS X 10.5, Mac OS X10.6, Mac OS X10.7n Hardware system should meet the recommended requireemtns for the installed OS version.