Gigabyte GA-990FXA-UD5 R5 User Manual page 29

12) F_USB30 (USB 3.0/2.0 Header)
The header conforms to USB 3.0/2.0 specification and 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.
13) F_USB1/F_USB2/F_USB3 (USB 2.0/1.1 Headers)
BUG
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
RT
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
• 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.
1
F_USB30
20
Pin No. Definition
1 VBUS
2 SSRX1-
3 SSRX1+
4 GND
5 SSTX1-
6 SSTX1+
7 GND
8 D1-
9 D1+
10 NC
9 1
10 2
S _
- 29 -
S _
10
F_ U
11
Pin No. Definition
11 D2+
12 D2-
13 GND
14 SSTX2+
15 SSTX2-
16 GND
B_
17 SSRX2+
18 SSRX2-
19 VBUS
20 No Pin
Pin No. Definition
1 Power (5V)
2 Power (5V)
3 USB DX-
4 USB DY-
5 USB DX+
6 USB DY+
B S S
S 7 3 GND
8 GND
9 No Pin
10 NC
B_
Hardware Installation
S
S
S F