Detailed Product Description Vodaphone MD950, USB EDGE Modem, USB Edge wireless data cardSupports EDGE on 850/900/1800/1900MHz with 236.8Kbps downlinkMicroSD memory expansion up to 4GBHigh performance internal antennaSupports Data/SMS functionsAutomatic install driver, plug and playUSB 2.0 InterfaceSupports Windows XP/ 2000/ Vista /linux2.4/2.6/Mac OS 10.5.1