Asus P4C800-E - Manual (Page 56)

2-30 Chapter 2: Hardware information
13. USB headers (10-1 pin USB56, USB78)
If the USB ports on the rear panel are inadequate, two USB headers
are available for additional USB ports. The USB header complies with
USB 2.0 specification that supports up to 480 Mbps connection speed.
This speed advantage over the conventional 12 Mbps on USB 1.1
allows faster Internet connection, interactive gaming, and simultaneous
running of high-speed peripherals.
Connect an optional USB 2.0/GAME module to this header. The
module has two USB 2.0 ports that support the next generation USB
peripherals such as high resolution cameras, scanners, and printers.
NEVER connect a 1394 cable to the either USB56 or USB78
connector. Doing so will damage the motherboard!
P4C800-E
®
P4C800-E USB 2.0 Header
USB56
USB+6V USB_P6- USB_P6+ GND NC
USB+5V
USB_P5- USB_P5+
GND
1
USB78
USB+8V USB_P8- USB_P8+ GND NC
USB+7V
USB_P7- USB_P7+
GND
1