Cisco HWIC-4ESW EtherSwitch High Speed WIC Card 4-port Cisco EtherSwitch 10/100 high-speed WAN interface card (HWIC) supported on the Cisco 1800 (modular), Cisco 2800, and Cisco 3800 series integrated services routers Offers option to integrate switching and routing in one device for small-to-large-size businesses and enterprise branch office customers Offers ease of configuration, deployment, and management while using the powerful characteristics of Cisco routing and Cisco Catalyst switching features