Optical Converters connect different kinds of connector types ensuring a low connection loss. Because the ferrule OD�fs are the same, to connect MU Connectors with LC connectors is relatively easy. However, special techniques are required for connecting the connector in which ferrule OD�fs are different. There are two kinds of optical converters; one is a Female to Female Type also called a Converting Adapter and the other is a Male to Female Type also called a Plug-In Converter.