Detachable 2 dBi antenna with 100cm long length cable provides convenience to locate the antenna. High security protection: 64/128bit WEP WPA WPA2 802.1x, 802.11i, AES, TKIP. High quality Ralink wireless b/g solution Media Access Protocol CSMA/CA (Collision Avoidance) with ACK Operating Temperature 0~55℃ ambient temperature Storage Temperature -20~70℃ ambient temperature Operating & Storage Humidity 90% maximum Compatible with Windows 98SE, ME, 2000, XP (32/64 bit), Vista (32/64 bit), Win7 (32/64 bit); Mac 10.3/ 10.4/ 10.5 NOTICE: There are too many versions of Linux. We can't guarantee that this model can work in ALL Linux system. Please make sure the compatibility or contact our tech support before you buy it for a Linux system.