10 x CISCO GLC-FE-100FX-RGD 100BASE-FX SFP transceiver, 2Km (BRAND NEW SEALED)
Max Reach Distance: 2Km. The Cisco 100BASE-FX Small Form-factor Pluggable (SFP) is a hot-swappable input/output device that plugs into a Fast Ethernet port or slot, linking the port with the network.