User`s manual

Introductions
2-10
7. SPDIF-Out
The S/PDIF connector is also provided for digital audio transmission to external speakers
through an optical fiber cable.
8. Audio Port Connectors
Make high quality sound blaster with stereo system and Hi-Fi function supported.
Headphone out
 Used for speakers or headphones.
Mic In
 Used for an external microphone.