1 x 100 Mbps SC Fiber Port 1 x 10/100 Mbps RJ45 Port (Auto MDI/MDIX)

TP-LINK (TL-FC111B-20) 10/100 Mbps WDM Media Converter, up to 20km, 802.3u 10/100Base-TX, 100Base-FX, Single-Mode, Half-Duplex/Full-Duplex