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ASUS Q87M-E
1-13
10. USB 2.0 ports 7 and 8. These two 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
11. DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to
output RGB Signal to CRT and is not compatible with DVI-I.
12. HDMI port.
This port is for a High-Denition Multimedia Interface (HDMI) connector,
and is HDCP compliant allowing playback of HD DVD, Blu-ray, and other protected
content.
Intel display architecture design supports the following maximum supported pixel clocks
(Pixel Clock = H total x V Total x Frame Rate (Screen refresh rate)):
- DisplayPort port: 553 MHz
- HDMI port: 300 MHz
- DVI port: 165 MHz
- VGA port: 180 MHz
13. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
1.7.2 Internal connectors
1. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
Q87M-E
Q87M-E Serial port(COM) connectors
PIN 1
COM1
D
C
D
D
X
T
D
N
G
S
T
R
I
R
D
X
R
R
T
D
R
S
D
S
T
C
PIN 1
COM2
D
C
D
D
X
T
D
N
G
S
T
R
I
R
DX
R
R
T
D
R
S
D
S
T
C