USB3: Front panel USB connectors
The mainboard has four USB ports installed on the rear edge I/O port array.
Additionally, some computer cases have USB ports at the front of the case. If
you have this kind of case, use auxiliary USB connectors USB3 to connect the
front-mounted ports to the mainboard.
Pin
Signal Name
Function
1 USBVCC
+5V
2 USBVCC
+5V
3
USBP4-
Data signal port 4 -
4
USBP5-
Data signal port 5 -
5
USBP4+
Data signal port 4 +
6
USBP5+
Data signal port 5 +
7 GND
Ground
8 GND
Ground
9 Key
Cut
away
10 NC
No
connection
Note:
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hang-up.
USBCR1: USB Card Reader connector
This connector is for connecting internal USB card reader. You can use a card
reader to read or transfer files and digital images to your computer.
Pin
Signal Name
Function
1 USBVCC
+5V
2
USB1-
Data signal port 1-
3
USB1+
Data signal port 1+
4 GND
Ground
5 Key
No
pin
Note:
The USBCR1 is shared with one of the USB ports of the I/O back panel.
The USB port is located beside the serial port connectors. See
“Connecting I/O Devices” for more information.
Please check the pin assignment of the cable and the USB header on
the mainboard. Make sure the pin assignment will match before
plugging in. Any incorrect usage may cause unexpected damage to the
system.
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