Chapter 2: Installation
2-15
Universal Serial Bus (USB)
Two Universal Serial Bus 2.0 ports (#0/1), and four USB 3.0 ports (#4/5,
#6/7) are located on the I/O back panel. In addition, one USB 2.0 header
(#2/3), and two USB 3.0 headers (#8/9, #10/11) are also located on
the motherboard to provide front chassis access using USB cables (not
included). See the tables below for pin denitions.
Back Panel USB (2.0) #0/1
Pin Denitions
Pin# Denition Pin# Denition
4 +5V 8 +5V
7 USB_PN1 3 USB_PN0
6 USB_PP1 2 USB_PP0
5 Ground 1 Ground
Front Panel USB (2.0) Header #2/3
Pin Denitions
Pin # Denition Pin # Denition
1 +5V 2 +5V
3 USB_PN6 4 USB_PN7
5 USB_PP6 6 USB_PP7
7 Ground 8 Ground
9 Key 10 Ground
Front Panel USB (3.0) Header #8/9, #10/11
Pin Denitions
Pin# Pin# Signal Name Description
1 19 VBUS Power
8 12 D- USB 2.0 Differential Pair
9 11 D+
7 13 Ground Ground of PWR Return
2 18 StdA_SSRX- SuperSpeed Receiver
3 17 StdA_SSRX+ Differential Pair
4 16 GND_DRAIN Ground for Signal Return
5 15 StdA_SSTX- SuperSpeed Transmitter
6 14 StdA_SSTX+ Differential Pair
Back Panel USB (3.0) #4/5
Pin Denitions
Pin # Denition Pin # Denition
1 +5V 10 +5V
2 USB_PN12 11 USB_PN13
3 USB_PP12 12 USB_PP13
4 Ground 13 Ground
Back Panel USB (3.0) #6/7
Pin Denitions
Pin # Denition Pin # Denition
A1 +5V B1 +5V
A2 USB_PN2 B2 USB_PN3
A3 USB_PP2 B3 USB_PP3
A4 Ground B4 Ground
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