Asus P5KC - Manual (Page 58)

2-34 Chapter 2: Hardware information
5. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF)
port(s). Connect the S/PDIF Out module cable to this connector, then install
the module to a slot opening at the back of the system chassis.
The S/PDIF module is purchased separately.
6. USB connectors (10-1 pin USB78, USB 910, 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.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
You can connect the USB cable to ASUS Q-Connector (USB, blue) first, and
then install the Q-Connector (USB) to the USB connector onboard.
The USB module is purchased separately.
P5KC
®
P5KC Digital audio connector
+5V SPDIFOUT GND
SPDIF_OUT
P5KC
®
P5KC USB 2.0 connectors
USB1112
USB+5V USB_P6- USB_P6+ GND NC
USB+5V USB_P5- USB_P5+
GND
USB78
USB+5V USB_P8- USB_P8+ GND NC
USB+5V USB_P7- USB_P7+
GND
USB910
NC
GND
USB_P10+ USB_P10-
USB+5V
GND USB_P9+ USB_P9- USB+5V