1.10Connectors

1.10.1Rear panel ports

1.PS/2 Keyboard/Mouse Combo port (purple). This port is for a PS/2 keyboard or mouse.

2.Optical S/PDIF_OUT port. This port connects to an external audio output device via an optical S/PDIF cable.

3.VGA port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.

4.USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are for USB

2.0 devices.

5.LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.

LAN port LED indications

 

 

ACT/LINK SPEED

 

 

 

 

LED

LED

Activity/Link LED

Speed LED

 

 

 

 

 

 

 

Status

Description

Status

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

No link

OFF

10Mbps connection

 

 

 

 

 

 

 

 

 

 

ORANGE

Linked

ORANGE

100Mbps connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLINKING

Data activity

GREEN

1Gbps connection

 

LAN port

 

 

 

 

 

 

6.Center/Subwoofer port (orange). This port connects to the center/subwoofer speakers.

7.Rear Speaker Out port (black). This port connects to the rear speakers in the

4, 6, and 8-channel audio configurations.

8.Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.

9.Line Out port (lime). This port connects to a headphone or a speaker. In the 4, 6 and

8-channel configurations, the function of this port becomes Front Speaker Out.

10.Microphone port (pink). This port connects to a microphone.

11.Side Speaker Out port (gray). This port connects to the side speakers in the

8-channel audio configuration.

Refer to the audio configuration table on the next page for the function of the audio ports in the 2, 4, 6, or 8-channel configuration.

ASUS M4A78-EM

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