The Linksys Wireless-G Broadband Router with SpeedBooster has more funtionality than previous routers. With the Linksys WRT54GS; you can connect Wireless-G, Wireless-B, and other SpeedBooster devices to the network supported by built-in Speedbooster software. Your wired Ethernet devices can be networked via the built-in 4-port full-duplex 10/100 switch. This all-in-one functionality is then combined thanks to the router function, allowing your entire network to share a DSL of high speed cable Internet connection. When running a mixed network of SpeedBooster and regular Wireless-G devices, the it gives you a significant boost in performance. This wireless G router supports WEP, WPA, WPA2, and 802.1x wireless security protocols.