1, data cards compatible with HSDPA and UMTS, downlink speed of up to 7.2Mbps, is also compatible with EDGE / GPRS / GSM, speeds up to 247Kbps;  Including the band-band GSM: 850/900/1800/1900 Mhz; UMTS band: 2100Mhz or 850Mhz/2100Mhz or 850Mhz/1900Mhz;
2, switch mode: automatically in the HSDPA, WCDMA, GPRS switching between the three;
3 days Line: Built-in antenna;
4, supported operating systems: Windows2000, Windows XP, Windows Vista,
5, the master CPU: Qualcomm MSM6280 chipset;
6,USB-powered, USIM interface;
7, interface support: USB;
8, the wireless mode selection: only 3G/3.5G (WCDMA / HSDPA)
Only a 2G (GSM / GPRS / EDGE)
2G +3 G (3.5Gdual-mode)
9, Plug and Play: Auto installation of software;
10,EDGE / GPRS data rates up to 247Kbps;
11, HSDPA data rate downstream: up to 7.2Mbps; upstream: up to 384Kbps;
12,3-color LED indicator light;
13, Environmental Operating temperature: -20 º C to +55 º C;
14, Storage temperature: -30 º C to +65 º C;
15, Humidity: ≤ 93%;