Standards: IEEE 802.11a/b/g/n Wireless Data Rates: Up to 450 + 450 Mbps Security: WPA/WPA2-PSK WPA/WPA2: WPA2 Frequency Band: 2.4GHz/5GHz Antenna: Internal Antenna System Requirements: Intel Pentium class PC Available USB 1.1 or USB 2.0 slot Microsoft Windows 7, XP, Vista: (32/64-bit) Dimensions: 3.70" x 1.10" x 0.51"