Gigabyte B550M AORUS ELITE User Manual page 19

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.
9
10
14) 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.
9
10
_ _ 3
15) TPM (Trusted Platform Module Header)
You may connect a TPM (Trusted Platform Module) to this header.
_ _B
11
12
S F_
B_
B
F_
Pin No. Definition
1
2
_
B
• 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.
S B_
B
_ S
S_
_
B
Pin No. Definition
1
_ U
2
_
B
F_USB3 F
_ S _
Pin No. Definition
1
2
S S
Pin No. Definition
1 Power (5V) 6
2 Power (5V) 7
3 USB DX- 8
4 USB DY- 9
B S_
5 USB DX+ 10
B
Pin No. Definition
1 NDCD- 6
2 NSIN 7
3 NSOUT 8
4 NDTR- 9
5 GND 10
Pin No. Definition
1 7
LAD0
2 8
VCC3
3 9
LAD1
4 10
No Pin
5 11
LAD2
6 12
LCLK
- 19 -
U
USB DY+
GND
GND
No Pin
NC
NDSR-
NRTS-
NCTS-
F
NRI-
No Pin
_ 0
_ F
LAD3
GND
LFRAME
NC
SERIRQ
_ 0 F
LRESET
S
S