Etekcity 6R Wireless Mini WiFi N USB LAN Network Adapter 150 Mbps 802.11 B/G/N RTL 8188 Chipset Windows Linux MAC OS Small wireless adapter, compact and portable, Plug and Play. High speed wireless transmission at up to 150Mbps. Security Types: WEP 64/128, WPA/WPA2, WPA PSK/WPA2-PSK. 22.4 ~ 2.4835 GHz Frequency Band, Transmission distance: Indoor 100m/Outdoor 300m(depending on environment). Operating Temperature: 32F - 104F, Storage Temperature: -40F - 158F, Operating Humidity: 10%~90% RH non-condensing, Storage Humidity: 5%~90% RH non-condensing; OS: Windows Xp/Vista/7/8, Linux, and MAC.