Sienoc Wireless USB adapter -150Mbps 802.11n/g/b 6dBi WiFi LAN Network Card Adapter Standard: IEEE 802.11n, IEEE 802.11g, IEEE802.11b Frequency range: 2.4-2.4835GHz Antenna : 6dBi Channel : up to 13 Support network protocol: CSMA/CA with ACK Sensitivity:: 54-68dBm @ 10% PER, 11M:-85dBm @ 8% PER, 6M:-88dBm @ 10% PER, 1M:-90dBm @ 8% PER, 256K:-105dBm @ 8% PER(typical value) Security Features: Support 64/128/152 bit WEP data encryption, WPA encryption, IEEE 802.1X, TKIP, AES encryption and security mechanisms, etc. Support sytem: Windows 2000/XP/Vista/Windows 7, Liunx.