Rear panel i/o ports, Chapter 2 – DFI HD171-H81 User Manual
Page 19

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Chapter 2 Hardware Installation
Chapter 2
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Rear Panel I/O Ports
DP
USB 3.0
Line-out
Line-in
Mic-in
VGA
USB 2.0
DC-in
DVI-I
(DVI-D signal)
COM 1
LAN 1 LAN 2
The rear panel I/O ports consist of the following:
• 1 12V (HD171) or 19~24V (HD173) DC-in jack or 4-pin power connector* (optional)
• 1 COM port
• 1 VGA port
• 1 DP port (default) or 1 mini-DIN-6 PS/2 keyboard/mouse port* (optional)
• 1 DVI-D port
• 2 RJ45 LAN ports
• 2 USB 2.0 ports
• 2 USB 3.0 ports
• 1 Line-in jack
• 1 Line-out jack
• 1 Mic-in jack
12V DC-in (HD171)/19~24V DC-in (HD173)
DC-in
This jack provides maximum of 100W/120W power and is considered a low power solution.
Connect a DC power cord to this jack. We only provide 12V/19V DC output in the package
contents. Using a voltage more than the recommended range may fail to boot the system or
cause damage to the system board.
The DC-in jack on the system board co-lays with a 4-pin power connector (optional) as the
photo displayed below.
DC-in jack
4-pin power