10/100Mbps RJ45 to 100Mbps single-mode SC fiber Converter, Full-duplex, up to 20Km, switching power adapter, chassis TL-MC1400 rack-mountable
TP-Link MC110CS 10/100 RJ-45 to Single Mode Fibre SC Converter
10/100Mbps RJ45 to 100Mbps single-mode SC fiber Converter, Full-duplex, up to 20Km, switching power