Alfa AWUS036NHA High Gain Wireless B/G/N USB Adaptor - Long-Rang Wi-Fi Network Adapter With 5dBi and 9dBi Antenna for Wardriving & Range Extension - Windows XP / Vista 64-Bit /128-Bit Windows 7 Compatible - Atheros Chipset Compatible with Any Brand 802.11b, 802.11g or 802.11n Router Using 2.4ghz Wavelength Includes a 4 inch 5 DdBi Screw-On Swivel Rubber Antenna and a 14 inch 9dBi Original Alfa Rubber Antenna Supports the Following Security Protocols: 64/128-bit WEP, WPA, WPA2, TKIP, AES Compatibility: Windows 2000, XP 32/64, Vista 32/64, Windows 7 High Transmitter Power of 28dBm - for Long-Rang and High Gain Wi-Fi