Gigabyte A520M DS3H AC User Manual page 18

11) F_U32 (USB 3.2 Gen 1 Header)
The header conforms to USB 3.2 Gen 1 and USB 2.0 specification and can provide two USB ports. For
purchasing the optional 3.5" front panel that provides two USB 3.2 Gen 1 ports, please contact the local
dealer.
1
F_USB30
20
12) F_USB1 (USB 2.0/1.1 Header)
The header conforms 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.
9 1
10 2
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB 2.0/1.1 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.
13) COM (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
S
9 1
10 2
S _
Pin No. Definition
1 VBUS
10
2 SSRX1-
F_ U
3 SSRX1+
4 GND
11
5 SSTX1-
6 SSTX1+
7 GND
8 D1-
9 D1+
10 NC
B_
Pin No. Definition
1 Power (5V)
2 Power (5V)
3 USB DX-
4 USB DY-
5 USB DX+
S
B S S
3
Pin No. Definition
1 NDCD-
2 NSIN
3 NSOUT
4 NDTR-
S F
5 GND
- 18 -
B_
Pin No. Definition
11 D2+
12 D2-
13 GND
14 SSTX2+
15 SSTX2-
16 GND
17 SSRX2+
18 SSRX2-
19 VBUS
20 No Pin
B S S
1
Pin No. Definition
6 USB DY+
S
7 GND
8 GND
9 No Pin
10 NC
1 2 3
U
S
Pin No. Definition
6 NDSR-
7 NRTS-
8 NCTS-
9 NRI-
_
10 No Pin
_
S _S
F_
_S
_ _ 3
_ _B