Tendak 4k x 2k hdmi to hdmi and optical toslink spdif 3 5mm stereo audio extractor converter hdmi audio splitter adapter hdmi input hdmi digital analog audio output 4 0 out of 5 stars 756 25 69 25.
Hdmi cable with optical output.
Agptek 4k x 2k hdmi audio extractor splitter hdmi to hdmi audio converter adapter support ultra hd 4k toslink optical audio output and 3 5mm audio with optical fiber cable 3 8 out of 5 stars 85 19 99 19.
Both are better than analog the red and white cables.
Something like the qed performance graphite optical is a good entry level option.
Agptek 4k x 2k hdmi audio extractor splitter hdmi to hdmi audio converter adapter support ultra hd 4k toslink optical audio output and 3 5mm audio with optical fiber cable 3 8 out of 5 stars 84 19 99 19.
Although hdmi has taken over as the main socket of choice for many manufacturers optical outputs are still common on games consoles blu ray players.
Both hdmi and optical pass digital audio from one device to another.
Both can pass multi channel audio like dolby digital.