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Chapter 2: Installation
Universal Serial Bus (USB) Ports
There are two USB 3.0 ports (USB0/1) on the I/O back panel. The motherboard also provides
two USB 3.0 connections via USB headers (USB3/4). The USB2 header is USB 3.0 Type
A. The onboard headers can be used to provide front side USB access with a cable (not
included).
Back Panel USB 3.0 (USB0/1)
Pin Definitions
Pin#
Definition
Pin#
Definition
A1
VBUS
B1
Power
A2
D-
B2
USB 2.0
A3
D+
B3
Differential Pair
A4
Ground
B4
Ground
A5
SSRX-
B5
SuperSpeed Receiver
A6
SSRX+
B6
Differential Pair
A7
Ground
B7
Ground
A8
SSTX-
B8
SuperSpeed Transmitter
A9
SSTX+
B9
Differential Pair
Front Panel USB 3.0 (USB3/4)
Pin Definitions
Pin#
Definition
Pin#
Definition
Description
A1
VBUS
KEY
Key, no pin
A2
SSRX-
B19
VBUS
Power
A3
SSRX+
B18
SSRX-
SuperSpeed Receiver
A4
Ground
B17
SSRX+
Differential Pair
A5
SSTX-
B16
Ground
Ground
A6
SSTX+
B15
SSTX-
SuperSpeed Transmitter
A7
Ground
B14
SSTX+
Differential Pair
A8
D-
B13
Ground
Ground
A9
D+
B12
D-
USB 2.0
A10
Ground
B11
D+
Differential Pair
Internal USB 3.0 Type A (USB2)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
VBUS
5
SSRX-
2
D-
6
SSRX+
3
D+
7
Ground
4
Ground
8
SSTX-
9
SSTX+
IPMI LAN Port
One IPMI LAN port is located on the I/O back panel. This port accepts an RJ45 type cable.