Keep legacy copper and fiber segments connected with a converter built for straightforward Fast Ethernet extension. The TP-Link MC100CM translates 100BASE-FX fiber to 100Base-TX copper, or the reverse, so you can bridge equipment across longer distances without replacing endpoints. It supports multi-mode fiber and uses an SC-type connector, making it a practical fit for access-layer links, building interconnects, and isolated network runs. Designed to work under IEEE 802.3u 10/100Base-TX and 100Base-FX standards, this external media converter delivers a clean handoff between copper and fiber media. Maximum supported distance reaches 2 km, giving you room to place devices where cabling constraints would otherwise force a redesign. With one RJ-45 port and one SC port, the MC100CM keeps the topology simple while preserving the performance characteristics expected from a dedicated media conversion device. It is a focused choice when you need reliable conversion, not extra complexity.