Rosewill (1T2R) IEEE 802.11b/g/n USB 2.0 Wireless Adapter with Hardware WPS Button (RNX-N180UB) Compliant with IEEE 802.11n and backward compatible with 802.11g/b, the Rosewill RNX-N180UB adapter smoothly integrates into any existing wireless network The Rosewill RNX-N180UB supports 64/128-bit WEP (Hex & ASCII), WPA/WPA2, WPA(TKIP with IEEE 802.1x)/WPA2(AES with IEEE 802.1x) encryption for improved security Supports WMM for multimedia applications with Quality of Service in Wi-Fi networks, so you'll enjoy smooth, stutter-free A/V entertainment