10/100M RJ45 to 100M, TP-Link single-mode SC fiber (WDM) Converter MC112CS, F-duplex, up to 20KmComplies with 802.3u 10/100Base-Tx and 100Base-Fx standard Provide one SC fiber connector and one UTP connector Auto-detection of half/full duplex transfer mode for Tx port Auto-negotiation of 10/100Mbpa rate and Auto-MDIX for Tx port Provide switch configuration of half/full duplex transfer mode for FX port Extend fiber distance up to 2km for multi-mode fiber and 20-60km for single-mode fiber Easy-to-view LED indicators provides status to easily monitor network activity External power supply