10
Chapter 3
Connectors and Headers
3-1 I/O Back Panel Connectors
* Note:
The above diagram is for illustration purpose only. Different models may differ in rear panel
connectors. Please refer to the actual product you purchase.
(1) PS/2 Mouse & PS/2 Keyboard Connector: KB
The connectors are for PS/2 keyboard and PS/2 Mouse.
(2) D-Sub 15-pin Connector: VGA
VGA is the 15-pin D-Subminiature female connector; it is for the display devices,
such as the CRT monitor, LCD monitor and so on.
(3) Digital Visual Interface: DVI
This interface standard designed to maximize the visual quality of digital display
devices such as flat panel LCD computer displays and digital projectors.
(4) High-Definition Multimedia Interface: HDMI
This point-to-point interface is for audio and video signals designed as a
single-cable solution for home theater and consumer electronics equipment.
NOTE! DVI and HDMI Connector can not be used at the same time.
(5) USB 3.0 Ports: USB3_1 (Optional for A75M series)
These blue connectors are 4-pin USB 3.0 connectors to connect USB devices to
the system board.
(6) USB 2.0 Ports: from CN2 (Optional for A55M)/ UL1
The connectors are 4-pin USB 2.0 connectors to connect USB devices to the
system board.
(7) RJ-45 LAN Port connector: from UL1
The connector is standard RJ-45 connector for Network. It supports 10/100
Mbps data transfer rate.
(8) Audio Line-In, Line-Out, MIC Connector: CN3
These Connectors are 3 Phone-Jack for LINE-OUT, LINE-IN, and MIC audio
connections.
Line-in: (BLUE) Audio input to sound chip
Line-out: (GREEN) Audio output to speaker
MIC: (PINK) Microphone Connector
USB 2.0 Ports
PS/2 Keyboard
Port
VGA Port
RJ-45 LAN Port
PS/2 Mouse
Port
Line-In
Line-Out
MIC-In
DVI Port
HDMI Port
Optional
USB 2.0/ USB 3.0
Ports
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