Amazon.com: Cisco 2921 Integrated Services Router - 1 x SFP (Mini-GBIC), 2 x CompactFlash (CF) Card, 4 x HWIC, 2 x Services Module, 3 x PVDM - 3 x 10/100/1000Base-T WAN - CISCO2921-SEC/K9 : Electronics
Amazon.com: Cisco 891 Gigabit Ethernet Security Router with SFP and 24-ports Ethernet Switch : Electronics
SFP-10G-ZR-S= Price - Cisco Original New Transceiver
SFP Compatibility with RV160 and RV260 Series Routers - Cisco Community
Cisco SG500-52 48 Port Ethernet Switch 4 SFP Slots
Cisco Secure GE & SFP Router North America 4G LTE GPS (C899G-LTE-NA-K9)