Gigabyte GA-F2A68HM-D3H, User Manual, Page: 17 / 40

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10) F_USB1/F_USB2 (USB 2.0/1.1 Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
Pin No. Definition Pin No. Definition
1 Power (5V) 6 USB DY+
2 Power (5V) 7 GND
3 USB DX- 8 GND
4 USB DY- 9 No Pin
5 USB DX+ 10 NC
•
Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
• Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power
outlet to prevent damage to the USB bracket.
10
9
2
1
Pin No. Definition Pin No. Definition
1 VBUS 11 D2+
2 SSRX1- 12 D2-
3 SSRX1+ 13 GND
4 GND 14 SSTX2+
5 SSTX1- 15 SSTX2-
6 SSTX1+ 16 GND
7 GND 17 SSRX2+
8 D1- 18 SSRX2-
9 D1+ 19 VBUS
10 NC 20 No Pin
9) F_USB30_1/F_USB30_2 (USB 3.0/2.0 Headers)
The headers conform to USB 3.0/2.0 specification and each header can provide two USB ports. For
purchasing the optional 3.5" front panel that provides two USB 3.0/2.0 ports, please contact the local dealer.
F_USB30
F_ U
B_
F_ F_
_
B
B S_
B
S B_
B
_ S
S_
_
B
_ U
_
B
S
12
3
12 3
12
3
1 2 3
1
1
1
1
B S S
S
_S
S S U
1 2 3
S 3
B S S S
U
_ _ 3
F_USB3 F
S _
S _
S _
S F
B_
F
_ 0
S
S
_ 0 F
_ F
_
_
_ _B
10
20 1
11
11) COMA/COMB (Serial Port Headers)
The COM headers can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
Pin No. Definition Pin No. Definition
1
NDCD-
6
NDSR-
2
NSIN
7
NRTS-
3
NSOUT
8
NCTS-
4
NDTR-
9
NRI-
5
GND
10
No Pin
10
9
2
1