The Thor Fiber F-M4SDI-1ET is a compact power house that will allow any user to transport 4 signals channel of 1.485Gbps HD-SDI serial data interface unidirectionally while simultaneously transmitting two fast Ethernet 10/100Mb/s data. Furthermore this Thor Fiber Kit of Transmitter and Receiver will send RS485 in reverse for easy control over the kit. This sturdy unit creates an easy drop environment for users that require HD-SDI and Dual Fast Ethernet across any application and even allows additional AUX Cards which can allow a plethora of other options such as RS232 and RS422, and even capable of carrying external analog audio instead of the SDI embedded audio.