10/100Base-TX to 100Base-FX Single-Mode Fiber Converter (100Km) with SC-Type Connector -TRENDnet"s TFC-110 series Fiber Media Converter transforms 10/100Base-TX UTP/STP media to 100Base-FX media and vice versa. The 10/100Base-TX port auto-sense 10 or 100Mbps connection speed auto-negotiates half-/full-duplex mode and auto-selects MDI-X / MDI-II media type. The fiber connection can be multi-mode SC MT-RJ or single-mode SC Connector and it has a slide-switch for selecting half- or full-duplex mode. This converter will give your Switch/Hub the ability to interface with fiber connection over a distance up to 100 km.