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1.HSPA/UMTS:2100MHZ,GSM/GPRS/EDGE:850/900/1800/1900MHz
2.The maximum downlink 7.2Mbps

Standard USB 2.0 interface,no CD disk requested, plug and play, internal antenna.
American Qualcomm chipset MSM6280,
Frequency(5 bands):HSPA/UMTS:2100MHZ,GSM/GPRS/EDGE:850/900/1800/1900MHz quadband;
The maximum downlink 7.2Mbps,the maximum uplink 384Kbps;
embedded MicroSD slot,maximum supports 4G MicroSD card, and can work as U disk.
Operating Current:700mA;Sleep Current:50mA;
Operating Voltage:5V

Windows2000/XP/VISTA English OS