Alfa AWUSO36NH High Gain USB Wireless G / N Long-Rang WiFi Network Adapter 802.11b/g and "N", 2000mW of power which is more powerful than ANY other WiFi adapter on the market Includes a 4 inch 5 DdBi Screw-On Swivel Rubber Antenna that can be removed and upgrade up to 9dBi Very Secure with wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP,and AES Compatible with IEEE 802.11n, 802.11b/g/n wireless standards Supports driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7, Linux (2.4.x/2.6.x),and Mac (10.4.x/10.5.x)