USB 2.0 Wireless Router Dongle Internet Adapter WI-FI Receiver Card for Computer PC Wireless standard:IEEE 802.11n, IEEE 802.11g, IEEE 802.11b Host interface:High speed USB 2.0/1.1 interface Data security:64/128/152-bit WEP WPA,WPA-PSK,WPA2, WPA2-PSK. Operating System:Windows 2000/XP/Vista/Windows 7/Windows 8 Chipset:RTL8188EUS.