Asus F2A55 - Manual (Page 42)

8. USB 2.0 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
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
F2A55
F2A55 USB2.0 connectors
USB+5V USB_P12- USB_P12+ GND NC
USB+5V
USB_P11- USB_P11+
GND
USB1112
PIN 1
USB+5V USB_P10- USB_P10+ GND NC
USB+5V USB_P9- USB_P9+
GND
USB910
PIN 1
USB+5V USB_P8- USB_P8+ GND NC
USB+5V USB_P7- USB_P7+
GND
USB78
PIN 1
Chapter 1: Product introduction 1-30