10.Optical drive audio connector (4-pin CD)

These connectors allow you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.

CD

M3N-HD/HDMI

Left Audio Channel

GND

GND

Right Audio Channel

M3N-HD/HDMI Internal audio connector

11.Serial port connector (10-1 pin COM1)

This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.

COM1

M3N-HD/HDMI

M3N-HD/HDMI Serial port (COM1) connector

The COM module is purchased separately.

ASUS M3N-HD/HDMI

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