The Cisco 4-port 10/100BASE-T Fast Ethernet Switch WAN Interface Card (WIC-4ESW) for Cisco 1700 Series modular access routers is an intelligent managed switch, offering small businesses and enterprise small branch office customers the option to integrate LAN switching and routing into one platform. The advanced capabilities of the WAN interface card (WIC), including VLAN support, Spanning Tree Protocol, and traffic prioritization, provide the flexibility for customers to deploy different network configurations.The Cisco 4-Port Fast Ethernet Switch WIC extends the capabilities of Cisco 1700 Series modular access routers, providing four additional Fast Ethernet ports for expanded network deployments. When installed in the WIC or WIC/VIC slot of the router, this 4-port 10/100BASE-T switch WIC enables delivery of LAN services for connecting PCs, printers, server farms, wireless access points, or other LAN devices. The 10/100BASE-T Fast Ethernet port onboard the Cisco 1700 Series router can be connected to an external DSL or cable modem to provide high-speed broadband services.