Asus BM6635 Manuel De L'utilisateur page 39

Connecting.microphone.and.speakers
This desktop PC comes with microphone ports and speaker ports on both the front and
rear panels. The audio I/O ports located on the rear panel allow you to connect -channel,
4-channel, 6-channel, and 8-channel stereo speakers.
Connecting.Headphone.and.Mic
BM6635(MD560)
BM6835
ASUS BM665(MD560), BM685, and BP65(SD560) 7