Specifications Type USB Modem Weight 35.0 gr 1.2 oz Size 70.0 x 32.0 x 15.0 mm 2.8 x 1.3 x 0.6 inches Supported operating systems Apple Mac OS X (supported by third-party SW provider free download) Microsoft Windows� XP (SP2) Windows� 2000 (SP4) Windows� Vista (32/64-Bit) Drivers NDIS 5 driver Microsoft XP WHQL certified drivers Networks HSDPA 850/1900/2100 MHz UMTS 850/1900/2100 MHz EDGE 850/