Alfa 1000mW 1W 802.11g/n High Gain USB Wireless G/N Long-Rang WiFi Network Adapter - Dongle With Original 5dBi and 9dBi Rubber AntennaStrongest on the Market 802.11b/g and "N", 1000mW of power which is more powerful than ANY other WiFi Dongle on the market Includes a 4 inch 5 DdBi Screw-On Swivel Rubber Antenna that can be removed and upgrade up to 9dBi 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. Compliant with FCC Part 15.247 for US, ETS 300 328 for Europe Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES