HSDPA/UMTS (850/1900/2100MHz) GSM/GPRS/EDGE (850/900/1800/1900MHz) Support 3.6Mbps HSDPA services Micro SD Card Slot Support PC voice (optional) and SMS services Support data statistics Receive diversity (850/1900/2100MHz) Plug & Play Support Windows 2000, Windows XP, Windows Vista and Mac Operating Systems