7.2MBPS HSDPA MODEM USB interface Antenna: Internal Size:83X38X13mm(including USB cap and Antenna GENERAL FEATURES 1)Network: UMTS (HSDPA)/GSM/GPRS/EDGE, Dual Mode 2)Working frequency: UMTS(HSDPA): UMTS 2100 MHz GSM/GPRS/EDGE: Quad-Band 850/900/1800/1900 MHz 3)Standard: UMTS (HSDPA): Compliant to 3GPP R99&R5 GPRS/EDGE: Compliant to 3GPP R99 4)Output power: UMTS 2100 MHz: 0.25W GSM850/GSM900: 2W DCS1800/PCS1900: 1W 5)3Blue LED indicator for network status 6)1 Green LED indicator for power supply 7)Weight: 36g 8)Lower power consumption 9)OS support: Win 2000, WinXP,Win2003Vista