Astrotek Toslink Optical Audio Cable 1m - Male to Male OD2.0mm The ASTROTEK digital cables use light to transfer the signal; Connect the TOSLINK cable to your DVD player, CD player, satellite receiver, game console or other digital audio equipment for clear, fully detailed sound. Protective plastic cover protects lens from dust, dirt, and other material. • Supports optical digital audio • Low loss PMMA Poly (methyl methacrylate) core ensures low distortion • Included end cap protects the conductor from dust, dirt and other material