Asus Rampage III Extreme - Manual (Page 71)

4. USB connector (10-1 pin USB78)
This connector is for a USB 2.0 port. Connect the USB module cable to
this connector, then install the module to a slot opening at the back of the
system chassis. This USB connector complies 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.
5. ROG connector (3-pin ROG)
This connector is for the box (labeled as Republic of Gamers) on the
heatpipe assembly. Connect the cable of the box and it lights when the
system is on.
ROG Rampage III Extreme 2-41