The Alfa Wi-Fi Network Adapter allows you to establish a wirelessnetwork connection between several computers. It is compatible withwindows 98SE, 2000, Millennium, XP, Linux and Windows 7. Transferall your files swiftly at 54Mbps and securely with its 64/128/256bitWEP encryption. To facilitate long distance networking, this USBWi-Fi antenna adapter features high gain antennas which can be upgradedin the future. The compact size of the Wi-Fi wireless antenna adapterseamlessly fits in your desk without occupying too much space.