Alfa AWUS036NH 2000mW 2W 802.11g/n High Gain USB Wireless G / N Long-Range WiFi Network Adapter with 5dBi Screw-On Swivel Rubber Antenna and Mini bendable Flex cable for Better adjustment 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 Supports driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7, Linux,and Mac The Mount designed for easy clinging on Notebook, Netbook and Window.