Asus P5B - Manual (Page 52)

2-28 Chapter 2: Hardware information
6. USB connectors (10-1 pin USB56, USB 78, USB910)
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 9 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.
R
P5B
P5B USB 2.0 Connectors
USB78
USB+5V USB_P8
-
USB_P8
+
GND NC
USB+5V USB_P7
-
USB_P7
+
GND
USB56
USB+5V USB_P6 USB_P6 GND NC
USB+5V USB_P5
-
USB_P5
+
GND
- +
USB+5V
USB+5V USB_P9-
USB_P0-
USB_P9+
USB_P0+
GND
GND
USB90
NC
7. 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.
R
P5B
P5B Internal Audio Connector
CD
(black)
Right A
udio Channel
Left A
udio Channel
Ground Ground