1000 Mbps Gigabit Single Mode Fiber Media Converter LC 40 km

Cisco Compatible Gigabit Fiber SFP Transceiver Module MM LC 550m Mini-GBIC Module – 850nm 1000Base-SX Multimode SFP Fiber Module – Cisco GLC-SX-MM Compatible

Cisco Compatible Gigabit Fiber SFP Transceiver Module SM LC 10km (Mini-GBIC) – 1310nm 1000Base-LH Single Mode Fiber SFP Module

Cisco Compatible Gigabit Fiber SFP Transceiver Module SM LCw/ DDM 20km (Mini-GBIC) – 1310nm 1000Base-LH Single Mode Fiber SFP Module