While at one time they were the standard for surround sound systems, the fiber cables with their glowing red tips have now been largely supplanted by the all-in-one capabilities of HDMI on new TVs ...

And now, with just the addition of a highfalutin LED and some software, the Teensy can output digital audio over optical fiber. S/PDIF, and more specifically optical TOSLINK, uses LED light sent ...

It’s aimed mostly at enthusiast use in the home, so comes with useful multimedia features such as HDMI and S/PDIF audio outputs. It’s well specified elsewhere, too, with a pair of 2.5GbE ...