... High fidelity, Low loss Square type plug/Toslink ,5.5 cable connector plug Specification : 1). Produc character: anti-interference, ... amplifier, switches, 1394 card, sound card, Cable TV set-top box,Digital camera, Computer peripheral digital products, copier, printer, Printing equipment ... inserted core have metal and plastic two specifications performance) Cable core diameter (PMMA)Φ 1.0 mm can make ...