The TEW-637AP Wireless Easy-N-Upgrader upgrades your old, perfectly functioning router, to high speed Wireless N. Enjoy up to 12 times the speed and 4 times the coverage of a wireless g network. Eliminate wireless dead spots, seamlessly surf the Internet and help the environment by not throwing away your old router. The compact 300Mbps Wireless Easy-N-Upgrader is designed around ease of use, performance and environmental friendliness. The latest in wireless encryption ensures wireless security. Advanced Multiple Input Multiple Output (MIMO) antenna technology eliminates wireless dead spots. Wireless Protected Setup (WPS) lets you integrate other WPS devices into your network quickly.