Gigabyte A520I AC User Manual page 17

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11) SPEAKER (Speaker Header)
Connects to the speaker on the chassis front panel. The system reports system startup status by issuing
a beep code. One single short beep will be heard if no problem is detected at system startup.
F_USB30
12) 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.
20
11
13) 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.
1
2
9
10
• 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
S
from the power outlet to prevent damage to the USB bracket.
S
_
Pin No. Definition
1
VCC
2
NC
1
3
NC
4
SPK-
F_ U
Pin No. Definition
1
VBUS
1
2
SSRX1-
3
SSRX1+
4
GND
B_
5
SSTX1-
6
SSTX1+
10
7
GND
S
Pin
Definition
No.
1
Power (5V)
2
Power (5V)
3
USB DX-
4
USB DY-
5
USB DX+
B S S
3
S F
B_
Pin No. Definition
8
D1-
9
D1+
10
NC
11
D2+
B S S
12
D2-
1
13
GND
14
SSTX2+
S
1 2 3
Pin
Definition
No.
6
USB DY+
7
GND
8
GND
9
No Pin
10
NC
U
S
- 17 -
_
_
F_
Pin No. Definition
15
SSTX2-
16
GND
17
SSRX2+
18
SSRX2-
19
VBUS
20
No Pin
_S
_ _
3
_
_B
F
_

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