MSI VB9 User Manual page 23

20. Audio connector: Audio Port
This Connector are 3 phone Jack for LINE-OUT,LINE-IN,MIC and a 15-pin
D-Subminiature Receptacle Connector for joystick/MIDI Device.
Line-out : audio output to speaker
Line-in : audio input to sound chip
MIC : Microphone Connector
21. Game Port connector: GAME PORT
※ This conector able to support two Gome Ports.
22. PC Speaker signal Input connector: SPKIN 1
23. SPDIF (Sony / Philips Digital Interface) Input / Output Connectors: SPDIFIN /
SPDIFOUT
(Please plug here for second pair speakers as
output channels when use 4 speakers)
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