1.10.2 Internal connectors Asus prime Asus M3A78-EM

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ASUS M3A78-EM

1-33

Never connect a 1394 cable to the USB connectors. Doing so will damage the 

motherboard!

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.

The USB 2.0 module is purchased separately.

7.. Optical.drive.audio.in.connector.(4-pin.CD)

This connector allows you to receive stereo audio input from sound sources 

such as a CD-ROM, TV tuner, or MPEG card. 

M3A78-EM USB 2.0 Connectors

R

M3A78-EM

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

M3A78-EM Internal Audio Connector

R

M3A78-EM

CD

(black)

Right

Audio Channel

Lef

tA

udio Channel

Ground Ground