The GLC-LH-SMD Small Form-Factor Pluggable SMF Transceiver with DOM from Cisco is a Gigabit interface converter that links your switches and routers to the network. The hot-swappable input/output device plugs into a Gigabit Ethernet port or slot. If you want to get this than you will go with SwitchTechSupply. https://www.switchtechsupply.com/brands/finisar
