The Cisco EHWIC-1GE-SFP-CU 1 Port Dual Mode SFP Interface Card is a networking component designed for enterprise routers. With one port supporting both optical LC and Ethernet (RJ-45) connections, this card offers dual functionality for LAN and WAN interfaces. Its compact dimensions make it easy to integrate into existing networking setups, providing a reliable and high-quality connection for a variety of network devices. This product is compatible with Cisco routers and is ideal for businesses looking to enhance their networking capabilities with a trusted brand like Cisco.