The Linksys AE1200 Wireless-N USB Adapter upgrades your computer to the freedom and reliability of Wireless-N. Surf, share, chat and play over a wireless network. High-speed Wireless-N (802.11n) networking for your desktop or notebook PC. Uses multiple antennas to create a robust signal that travels farther and reduces dead spots. Can also connect to Wireless-G, -B and -N networks. Supports up to 128-bit encryption (WEP, WPA and WPA2) to keep your network protected. Compatible with Windows XP SP3, Vista® SP1/SP2 and Windows 7.