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Chapter 4: Motherboard Connections
Universal Serial Bus (USB) Ports and Headers
There are four USB 3.0 ports (USB2/3 and USB7/8) located on the rear I/O panel, and two
USB headers located on the motherboard. The USB headers provide front USB access.
The 10-pin black USB header supports two USB 2.0 connections (USB0/1), and the 12-pin
blue USB header supports two USB 3.0 connections (USB4/5).
USB6 is a Type-A USB 3.0
connector. These USB ports and headers can be used for USB support via USB cables (not
included).
Front Panel USB 0/1 (2.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
+5V
2
+5V
3
USB_N
4
USB_N
5
USB_P
6
USB_P
7
Ground
8
Ground
9
Key
10
NC
Rear I/O Panel USB 2/3, 7/8 (3.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
A1
VBUS
B1
Power
A2
D-
B2
USB_N
A3
D+
B3
USB_P
A4
GND
B4
GND
A5
Stda_SSRX-
B5
USB3_RN
A6
St
B6
USB3_RP
A7
GND
B7
GND
A8
Stda_SSTX-
B8
USB3_TN
A9
St
B9
USB3_TP
Front Panel USB 4/5 (3.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
VBUS
19
Power
2
Stda_SSRX-
18
USB3_RN
3
St
17
USB3_RP
4
GND
16
GND
5
Stda_SSTX-
15
USB3_TN
6
St
14
USB3_TP
7
GND
13
GND
8
D-
12
USB_N
9
D+
11
USB_P
10
x
Type-A USB 6 (3.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
VBUS
5
SSRX-
2
USB_N
6
SSRX+
3
USB_P
7
GND
4
Ground
8
SSTX-
9
SSTX+
