Gigabyte GA-X99-UD4, User Manual, Page: 33 / 128

- 33 - Hardware Installation
17) 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.
F_USB30
F_U B_
F_
F_ _ B
BS_ B
SB_ B
_S S_ _ B _U _ B
S
12 3
12
3
1 2 3
12
3
1
1
1
1
BSS
S
_S
SSU
1
2
3
S3
BSSS
U
__
3
F_USB3F
S
_
S
_
S
_
SF
B_
F _0
S S
_F
20
1
10
11
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
18) 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
1 Power (5V)
2 Power (5V)
3 USB DX-
4 USB DY-
5 USB DX+
6 USB DY+
7 GND
8 GND
9 No Pin
10 NC
DEBUG
PORT
G.QBOFM
10
9
2
1
•
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.