The C2G Optical to S/PDIF Coaxial Digital Audio Converter is designed to connect the TOSLINK optical output from devices like DVD players, cable boxes, or satellite receivers to a S/PDIF coaxial digital audio input. This converter is perfect for upgrading older audio systems, allowing you to enjoy full-digital signal and superior sound quality without the need for a new receiver. Its compact design makes installation easy, and it is compatible with home theater setups, Dolby Digital, and DTS sound systems. The unit comes with a power supply for hassle-free operation.