New High Power 3800MW 68DBI 4 Antenna 8000M Distance Wireless WiFi USB Adapter 3 year warranty from factory! Standards:Wireless:IEEE 802.11 b/g/n USB 2.0 standard Chipset:Realtek 8187L Ralink 3070L Date Rate:11b:1/2/5.5/11Mbps 11g:6/9/12/18/24/36/48/54Mbps Data modulation type:IEEE 802.11B:5.5/11 Mbps(DQPSK-CCK).2Mbps (DQPSK-dsss).1 Mbps (DQPSK-DSSS) IEEE 802.11g:48/54 Mbps(64QAM)24/36Mbps (16QAM),12/18 Mbps?QPSK),6/9Mbps(BPSK) Output power:11b:33sbm+/- 1.5dbm @11Mbps 11b:30sbm+/- 1.5dbm @54Mbps Sensitivity:11b:-85dBm+/- 1dbm @11Mbps 11b:-73dBm+/- 1dbm @54Mbps Antenna:external 68dBi antenna Host interface?USB 2.0 mini USB Frequency range: Us Canada:2.412GHZ~2.462GHZ(CH1-CH11) Eu,Japan:2.412GHZ! 2.47GHZ(CH1-CH13) sERCUITY:Wep64/128,WPA,WPA 2SUPPORT Driver:windows2000/XP/VISTA:LINUX:MAC 3 year warranty from factory!