Description:

The Cisco NIM-1GE-CU-SFP Network Interface Module is used in Cisco ISR 4000 Series routers to provide additional Gigabit Ethernet connectivity through both copper RJ45 and SFP fiber interfaces for flexible WAN or LAN networking deployments. Commonly installed in enterprise branch routers, corporate WAN edge networks, service provider connectivity systems, and distributed business infrastructures where additional high-speed Ethernet interfaces are required for network expansion. Maintenance teams, network administrators, and system integrators use this module for router interface expansion, infrastructure upgrades, WAN connectivity deployment, and replacement of existing network interface modules in Cisco ISR platforms. 

Applications:

The Cisco NIM-1GE-CU-SFP module enables enterprise routers to support both copper and fiber Gigabit Ethernet connections for flexible network integration. It is frequently deployed in enterprise branch offices, data communication gateways, and service provider edge networks where routers require additional uplink interfaces to connect to switches, fiber networks, or WAN circuits. The module supports both SFP transceivers and RJ45 copper connectivity, allowing organizations to adapt to different network infrastructures while maintaining reliable high-speed communication between network devices.

Technical Specifications:

• Manufacturer Part Number (MPN): NIM-1GE-CU-SFP
• Product Type: Network Interface Module (NIM)
• Interface Ports: 1 × Gigabit Ethernet RJ45 port and 1 × Gigabit Ethernet SFP slot
• Data Rate: 10/100/1000 Mbps Gigabit Ethernet
• Connector Types: RJ45 copper Ethernet and SFP fiber interface
• Router Compatibility: Cisco ISR 4000 Series routers (including ISR 4300 and ISR 4400 Series)
• Form Factor: Plug-in NIM expansion module
• Network Function: WAN or LAN interface expansion
• Connectivity Support: Copper Ethernet and fiber optic SFP transceivers
• Deployment Use: Router uplink connectivity and network expansion

Common Replacements:

• Cisco NIM-2GE-CU-SFP
• Cisco EHWIC-1GE-SFP-CU
• Cisco NIM-ES2-4