Analysis Plus Toslink Optical Digital Audio Cable 2 Meter by Analysis Plus. $55.00. A very flexible 8.0 mm OD fiber optics cable with a metal body Toslink connector at each end.  You can be assured that your digital signal we be free from Electromagnetic Interference (EMI/EMC) for the purest data stream.  Made from medical grade light conducting fiber, it has excellent light transfer characteristics and unlike glass, it will not microscopically fracture when flexed.