Asus F2A55-M/CSM User Manual page 40

7. USB connectors (10-1 pin USB56, USB78, 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.
F2A55-M USB2.0 connectors
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB module cable is purchased separately.
1-28
F2A55-M
PIN 1
USB910 USB78
PIN 1
USB56
PIN 1
Chapter 1: Product introduction