Asus M2N68 AM - Motherboard - Micro ATX User Manual page 34

6. USB connectors (10-1 pin USB78, USB910, USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specification that supports up to
480 Mbps connection speed.
M2N68-AM USB2.0 connectors
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
7. Optical drive audio in 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.
M2N68-AM Internal audio connector
1-24
M2N68-AM
USB56
M2N68-AM
USB78
PIN 1
CD
USB910
PIN 1
ASUS M2N68-AM
PIN 1