3G HSDPA USB Modem 1.USB HSDPA 3G modem, 2.Support 8GB Micro-SD Card, 3.PhoneBook, SMS, Single-band, double-b 1.USB HSDPA 3G modem, ... modem is this company offering a support network system of HSPA high-speed wireless modem,Downlink 7.2Mbps,Uplink384Kbps.Using USB2 ... seats,Can support 2 G / 3 G different business travel network charges,Support multiple operating system. For example Windows 2000/XP ...