5DBi High Power 300Mbps Wireless-N USB LAN 802.11n WiFi Network Adapter (RT3070) w/ High Gain Antenna Windows 7 Vista Mac linux High Power feature helps for getting stronger signal Supports high speed data rate up to 150Mbps when transferring data Detachable 5 dBi antenna for upgrading in future Safety Internet experience with WEP/WPA/WPA2/WPA-PSK/WPA2-PSK encryptions Compatible with Window 7, MacOS & Linux