Intambo yokukhanya-ekwabizwa ngokuba yi-TOSLINK ikhebula okanye intambo yomsindo optical-isebenzisa i-pulses yokukhanya kwiglasi okanye iplastiki yefiber core ukuhambisa umsindo wedijithali ngaphandle kokuphazamiseka kwe-electromagnetic.
Iintambo ze-Optical zixhasa i-PCM stereo, i-Dolby Digital 2.0-5.1, i-DTS Digital Surround, i-DTS-ES Matrix / i-Discrete 6.1, kunye ne-DTS 96/24, kodwa kungekhona i-codecs engalahlekanga njenge-Dolby TrueHD, i-DTS-HD MA, okanye iifomathi ezintywilayo ezifana ne-Dolby Atmos.