Asus P8H77-M - Manual (Page 44)

1-32 Chapter 1: Product introduction
4. USB 3.0 connector (20-1 pin USB3_34)
This connector is for the additional USB 3.0 ports, and complies with the USB 3.0
specificaton that supports up to 480 MBps connection speed. If the USB 3.0 front panel
cable is available from your system chassis, with this USB 3.0 connector, you can have
a front panel USB 3.0 solution.
The USB 3.0 module is purchased separately.
P8H77-M
P8H77-M USB3.0 Front panel connector
USB3_34
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
5. USB 2.0 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
48 MBps connection speed.
The USB 2.0 module is purchased separately.
P8H77-M
P8H77-M USB2.0 connector
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
USB+5V USB_P6- USB_P6+ GND NC
USB+5V USB_P5- USB_P5+
GND
USB56
PIN 1