Toslink Digital Optical Cables - TOSLINK cables are fiber optic cables that carry Digital audio data in the form of light pulses rather than using electricity. Light pulses eliminate distortions caused by capacitance, inductance and resistance of wire cables. Our Toslink cables feature Gold Plated metal ends, metal ferrule protects fiber (not plastic like many others). Other features include - Fiber covered with 2 outer jackets (to prevent kinking) - Finest plastic fiber available - Metal Backshell and Highly polished ends - Extremely flexible with bend radius of 17mm or greater.