Asus P8H77-I Manual page 41

10. USB connectors (10-1 pin USB78)
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.
P8H77-I USB2.0 connector
Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!
The USB module cable is purchased separately.
ASUS P8H77-I
USB78
PIN 1
USB+5V
USB+5V
USB_P8-
USB_P7-
USB_P8+
USB_P7+
GND
GND
NC
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