item: dac-003 spec: high quality digital fiber optic audio toslink cable - 5.0mm category: av cables / digital audio cables key words: high quality digital fiber optic audio toslink cable - 50mm this is our high quality optical cable that can carry high-resolution digital audio to and from devices such as dvd players stereo receivers, tvs or any device that calls for an optical connection. fiber optic cables are the best choice, when available, for transmission of audio signals. virtually no signal loss means you get the very best quality sound your device can produce.