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Chapter 4: Motherboard Connections
Universal Serial Bus (USB) Ports
There are two USB 2.0 ports (USB0/1) and two USB 3.2 Gen 1 ports (USB6/7) located on
the I/O back panel. The motherboard also has two front access USB 2.0 headers (USB2/3
and USB4/5) and one front access USB 3.2 Gen 1 header (USB8/9).
The USB10 header is
USB 3.2 Gen 1 Type-A. The onboard headers can be used to provide front side USB access
with a cable (not included).
Back Panel USB 6/7 (3.2 Gen 1)
Pin Definitions
Pin#
Definition
Pin#
Definition
A1
VBUS
B1
VBUS
A2
USB_N
B2
USB_N
A3
USB_P
B3
USB_P
A4
GND
B4
GND
A5
Stda_SSRX-
B5
Stda_SSRX-
A6
St
B6
St
A7
GND
B7
GND
A8
Stda_SSTX-
B8
Stda_SSTX-
A9
St
B9
St
Back Panel USB 0/1 (2.0)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
+5V
5
+5V
2
USB_N
6
USB_N
3
USB_P
7
USB_P
4
Ground
8
Ground
Front Panel USB 2/3, 4/5 (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
Front Panel USB 8/9 (3.2 Gen 1)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
VBUS
19
VBUS
2
Stda_SSRX-
18
Stda_SSRX-
3
St
17
St
4
GND
16
GND
5
Stda_SSTX-
15
Stda_SSTX-
6
St
14
St
7
GND
13
GND
8
USB_N
12
USB_N
9
USB_P
11
USB_P
10
NC
Type A USB 10 (3.2 Gen 1)
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+