The Dual-Band Wireless-N Gigabit Router is really four devices in one box. First, there is the dual-band Wireless Access Point, which lets you connect to the network withoutwires. There is also a built-in 4-port full-duplex 10/100/1000 Switch to connect yourwired-Ethernet devices together at up to gigabit speeds. The Router function ties itall together and lets your whole network share a high-speed cable or DSL Internetconnection.