1,High speed UMTS modem 2,UMTS/HSDPA/HSUPA 2100/850 3, ... . data transfer rate: downlink 7.2Mbps,uplink 384Kbps. Built in antenna, three colored indicator, Plug & Play, auto installation software. operating system ... : Windows 2000/XP/VISTA/Win7 product feature: built in high sensitive antenna, Plug & Play, auto startup, no CD required,