Alfa AWUS048NH High Gain 802.11b/g/n USB Wireless B / G / N Long-Range WiFi Network Adapter - Dongle With a 5 and 9dBi Screw-On Swivel Rubber Antenna Includes a 4 inch 5 DdBi Screw-On Swivel Rubber Antenna and Includes a upgraded 9dBi Antenna Supports driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7 Linux (2.4.x/2.6.x), Mac (10.4.x/10.5.x) Power PC& PC. Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES High speed transfer data rate up to 150 Mbps Compatible with IEEE 802.11n IEEE 802.11b/g wireless standards