The CVS4 is a 4 input, 1 output component video switch with inputs for Pr / Pb / Y video and L & R analog audio channels, and an extra channel for composite video. Both Toslink and SPDIF digital audio channels are supported as well. The CVS4 uses High Quality Gold Clad, Silver-Palladium Relays to switch all analog signals, for noise free, distortion free operations.