The Cisco HWIC-4ESW Ethernet Switch is a 4-port WAN interface card designed for Cisco routers. It provides Ethernet (RJ-45) network ports, allowing for high-speed and reliable connections. This HWIC is ideal for expanding the network capabilities of Cisco routers, offering a simple and effective solution for enhancing connectivity in enterprise environments. Compatible with Cisco routers, this Ethernet switch card offers a cost-effective way to add additional network ports and improve overall network performance. 1 appears to be new and one is used.