Detailed Product Description modems,wireless modem,modem linkHSPA USB Modem M73LUMTS band: 2100Mhz,Built-in ... , Windows Vista, MAC OS x 10.4,Support: USB interface,Wireless mode choice: only3G / 3.5 G (WCDMA/HSDPA)Supporting SMS ... : Download speed, 7.2 Mbps. Uplink: 384Kbps;Operating temperature: - 20o C + + - 55o C,Storage temperature: - 30o C + + - 65o C,Humidity than 93 ...