"Realtek Digital Output" is an audio interface that transmits sound in a raw digital format
: Using TOSLINK cables for zero electromagnetic interference. External DACs realtek digital output better
Digital output is superior if you have high-end external equipment: "Realtek Digital Output" is an audio interface that
Long Distances: Digital signals are less prone to interference and "hiss" over longer cable runs compared to analog cables. When to Stick with "Speakers" Upgrade to HDMI Audio: HDMI 2
Lack of Hardware: If you don't have an optical or coaxial cable plugged into the specific digital port on your motherboard, the Digital Output setting will not produce sound.