Place your digital audio components anywhere you want with Geffen's Digital Audio Extender. It supports either S/PDIF or TOSLINK digital audio signals, which are commonly used to transmit stereo and multichannel digital audio like Dolby Digital 5.1, DTS, and Dolby True HD. The Digital Audio Extender uses a Sender and Receiver system connected by a CAT-5e cable to extend the digital audio.