Chapter 2
2-20
Front USB Connectors: JUSB2/3/4 & USB3
Depending on the model you have purchased, your mainboard could
provide ONE or THREE USB (Universal Serial Bus) pin headers that allow you
to connect optional USB ports for front panel.
845 Ultra/ 845 Ultra-AR
USB 1.1:
The 845 Ultra & 845 Ultra-AR mainboards come with one standard USB 1.1
pin header USB3 that is compliant with Intel
®
I/O Connectivity Design Guide.
An optional JUSB2 header (MSI spec) would be available upon request.
In
te
l
8
4
5
c
h
ip
s
e
t
1
9
2
10
USB3
(USB 1.1/ Intel spec)
1
9
2
10
JUSB2
(USB 1.1/ optional MSI spec)
Pin
Description
Pin
Description
1
VCC
2
VCC
3
USB0-
4
USB1-
5
USB0+
6
USB1+
7
GND
8
GND
9
NC
10
OC0
USB3 Pin Definition
Pin
Description
Pin
Description
1
VCC
2
GND
3
USB0-
4
GND
5
USB0+
6
USB1+
7
GND
8
USB1-
9
GND
10
VCC
JUSB2 Pin Definition
