Aurum Gold Series Toslink Cable - Digital Optical Audio Cable - 30 Feet Aurum Gold Series Toslink Cable - Digital Optical Audio Cable - 30 Feet Toslink Digital Audio Cable provides you crystal clear signal, even at extreme volume level Optical cables transfer the signal using light; thus completely eliminating any chance for RFI, EMI Connects audio components to your audio or home theater system Gold-Plated Ferrule Prevents Corrosion and Provides for Maximum Protection of the Fiber Tip