TP-Link MC110CS, Single-Mode 20km range Fiber Media Converter 2 Ports 100 Mbps Smart Network Switch  (Black)

TP-Link MC110CS 10/100Mbps Single-Mode Media Converter Auto negotiation of 10/100Mbps and auto MDI/MDIX for TX port, provide switch configuration of half-duplex / full-duplex transfer mode for FX port and link fault passthrough and far end fault minimize the loss caused by link failure timely Extend fiber distance up to 20km, easy to view LED indicators provide status to monitor network activity easily and external power supply Complies with 802.3u 10/100Base-TX, 100Base-FX standards.