The kind of audio card your computer has.
I built my computer and have the Audigy card with the front bay set. I have a toslink digital in, toslink digital out, midi, headphones, mic,
I would connect the toslink from the audio card.
See if your audio card has a digital out IN ON THE CARD, A little gizmo card that screws in the back in a card bay to make that output to a toslink is cheap. I have at least one someplace. (But do't ask me to find it... I haven't a CLUE as to where the little devil is.)
I built my computer and have the Audigy card with the front bay set. I have a toslink digital in, toslink digital out, midi, headphones, mic,
I would connect the toslink from the audio card.
See if your audio card has a digital out IN ON THE CARD, A little gizmo card that screws in the back in a card bay to make that output to a toslink is cheap. I have at least one someplace. (But do't ask me to find it... I haven't a CLUE as to where the little devil is.)

