PLANEX 300Mbps IEEE802.11n Wireless USB Adapter Designed in Japan Data Rate : 802.11b 802.11g(54 Mbps, 48 Mbps, 36 Mbps, 24 Mbps, 18 Mbps, 12 Mbps, 9 Mbps, 6 Mbps) Draft 802.11n(Max 300Mbps) Security : WEP(64/128bit) Weight : 0.02 pound Dimension : 2.81(D) x 0.75(W) x 0.31(H) mm Compatible OS: Windows Vista/XP/2000, Mac OS 10.5/10.4/10.3