Cisco 1-Port Gigabit Ethernet WAN Network Interface Module NIM-1GE-CU-SFP
Cisco 4000 Series Integrated Services Router 2-Port Gigabit Ethernet WAN Modules NIM-2GE-CU-SFP
Cisco 6-Port dual-mode SFP and RJ-45 High-Density Gigabit Ethernet WAN Service Module SM-X-6X1G
Cisco 4-Port High-Density dual mode SFP and Rj-45 Gigabit or 1-Port SFP+ 10 Gigabit Ethernet WAN Service Module SM-X-4X1G-1X10G for ISR 4451-X
Cisco 4000 Series Integrated Services Router Network Interface Module Adapter for SM-X Slot SM-X-NIM-ADPTR
Cisco 4000 Series Integrated Services Router 4-Port Gigabit Ethernet Switch Module layer 2 NIM-ES2-4