Antenna:Internal integrated, Max Operating Temperature:40 C, Min Operating Temperature:0 C, Humidity Range Operating:10 - 90%, Connections:1 x Hi-Speed USB - 4 PIN USB Type A, Interface (Bus) Type:Hi-Speed USB, Depth:2.6 cm, Device Type:Network adapter, Height:1.2 cm, Width:8.6 cm, Form Factor:External, Encryption Algorithm:AES, 128-bit WEP, 256-bit WEP, 64-bit WEP, TKIP, WPA, Compliant Standards:CE, FCC, Compliant Standards:IEEE 802.11b, IEEE 802.11g, Status Indicators:Status, Frequency Band:2.4 GHz, Data Transfer Rate:54 Mbps, Max Range Open Space:300 m, Connectivity Technology:Wireless, Data Link Protocol:IEEE 802.11b, IEEE 802.11g, Max Range Indoors:100 m, Spread Spectrum Method:DSSS, OS Required:Microsoft Windows 7(32/64bits), Windows Vista(32/64bits), Windows XP(32/64bits), Windows 2000