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Z77A-ProX User's Manual
3.7 Additional USB Port Headers
The headers conform to USB 3.0/2.0/1.1 specification. Each USB header can provide two
additional USB ports.ports via an optional USB bracket.
Pin
Pin Assignment
Pin
Pin Assignment
1
VCC
11
D+
2
SSRX-
12
D-
3
SSRS+
13
GND
4
GND
14
SSTX+
5
SSTX-
15
SSTX-
6
SSTX+
16
GND
7
GND
17
SSRX+
8
D-
18
SSRX-
9
D+
19
VCC
10
ID
Pin
Pin Assignment
Pin
Pin Assignment
1
VCC
2
VCC
3
Data 0-
4
Data 0-
5
Data 0+
6
Data 0+
7
Ground
8
Ground
9
No Pin
10
NC
FUSB1(USB2.0)
FUSB1(USB2.0)
F_SUSB3(USB3.0)
F_SUSB3(USB3.0)
3.8 Serial Port Header
This JCOM1 header supports a serial port module.
Pin
Pin Assignment
Pin
Pin Assignment
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
