The FHC0110-3S20A10-LD5 is an Ethernet media converter that converts media transmission between UTP Copper cablings and fiber SFP (Small Form-Factor Pluggable) Transceivers. The FHC0110-3S20A10-LD5 copper-to-fiber module is available in 10/100Mbps Fast Ethernet types, allowing seamless integration between Fast Ethernet networks using unshielded twisted pair (UTP) copper cabling, and 100M fiber networks.