... Specifications:Device Type: 3G wireless network cardNetwork Type:3G: HSUPA, HSDPA, UMTS 2G: GSM,GPRS,EDGENetwork mode: Dual modeFrequency: HSUPA ... /HSDPA/UMTS: 2100MHz GSM/GPRS/EDGE 850/900/1800/Data ... system: Windows XP,Vista, Windows 7Other features: wireless router,wireless modem and U disk,three in one 3G wireless pocket router SIM slot