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845 Ultra-ARU
USB 1.1:
The 845 Ultra-ARU mainboard comes with one standard USB 1.1 pin header
USB3 that is compliant to Intel
tional JUSB2 header (MSI spec) would be available upon request.
USB 2.0:
The 845 Ultra-ARU additionally provides two USB 2.0 pin headers JUSB3 &
JUSB4 (optional USB 2.0 Bracket available). USB 2.0 technology increases
data transfer rate up to a maximum throughput of 480Mbps, which is 40
times faster than USB 1.1, and is ideal for connecting high-speed USB inter-
face peripherals such as USB HDD, digital cameras, MP3 players, printers,
modems and the like. It is not recommended to connect low-speed USB
legacy keyboard and mouse to the USB 2.0 ports. You should connect the
USB legacy devices to the USB rear ports.
9
1
10
2
JUSB3/JUSB4
(USB 2.0)
USB3 Pin Definition
Pin
Description
Pin
Description
1
VCC
2
VCC
3
USB0-
4
USB1-
5
USB0+
6
USB1+
7
GND
8
GND
9
NC
10
OC0
®
I/O Connectivity Design Guide. An op-
(USB 1.1/ optional MSI spec)
JUSB2/3/4 Pin Definition
Pin
Description
1
VCC
3
USB0-
5
USB0+
7
GND
9
GND
2-21
Hardware Setup
1
9
2
10
USB3
(USB 1.1/ Intel spec)
1
9
10
2
JUSB2
Pin
Description
2
GND
4
GND
6
USB1+
8
USB1-
10
VCC
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