What Is the Optical Audio Port, and When Should I Use It?
Toslink Optical Splitter 1 in 2 Out Audio Adapter Cable, EEEkit Digital Optical Fiber Optic Splitter with 24K Gold Plated Connectors for CD/DVD Player, Digital TV, Receiver, Sound Bar, Amplifier - Walmart.com
Optical Digital Audio Cable & Connection Explained | Home Cinema Guide
HDMI vs. Optical: Which Digital Audio Connection to Use? - CNET
Classic Optical Sound Recording - YouTube
Optical Sound Examples — Endpoint Audio Labs
Manhattan Toslink Digital Optical Audio Cable (356077)