- 4 Port Digital Optical Audio Switch - Allows you to switch between four TosLink source devices - Supports long distance cable lengths depending on the quality of the optical cable - Supports SPDIF sample rates up to 96Khz This very compact device allows you to switch four digital optical Toslink sources to a single optical TosLink (SPDIF) input on your HD TV, AV amplifier, Hi-Fi or home cinema system. Ideal for use with PS3, CD/DVD Player, set top box, PC etc. and saves on wear and tear of constant plugging and unplugging of cables.