User`s manual

Installation
2-9
Audio Jacks: Line-In, Line-Out, Microphone
The Line-Out jack is for connecting to external
speakers or headphones.
The Line-In jack is for connecting to an
external audio device such as a CD player, tape
player, etc...
The Mic jack is for connecting to a microphone.
If the mainboard is equipped with the VT1616 audio chip, then the board
also capable of six-channel audio. See Appendix A: Smart 5.1.
Line-InLine-Out Microphone