1.10.2 Internal connectors Asus prime Asus M3A78

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Chapter 1: Product introduction

6.  USB 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 480 Mbps 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.

R

M3A78

M3A78 USB 2.0 Connectors

USB78

USB+5V USB_P8

-

USB_P8

+

GN

D

NC

USB+5V USB_P7

-

USB_P7

+

GN

D

1

USB910

USB+5V USB_P10- USB_P10+ GN

D

NC

USB+5V USB_P9

-

USB_P9

+

GN

D

1

USB1112

USB+5V USB_P12- USB_P12+ GN

D

NC

USB+5V USB_P1

1-

USB_P1

1+

GND

1

7.  Digital audio connector (4-1 pin SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) 

port(s). Connect an HDMI module cable to this connector, then install the 

module to a slot opening at the back of the system chassis.