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Chapter 2
Front USB Connector: USB1/2 or USB3/4
The mainboard provides two USB 2.0 pinheaders (optional USB 2.0
Bracket available). Users can choose either the USB1/USB2 or the USB3/USB4
depending on their needs. The difference between USB1/USB2 & USB3/USB4
is that USB1/USB2 are compliant with Intel
Design Guide.
USB 2.0 technology increases data transfer rate up to a maximum through-
put of 480Mbps, which is 40 times faster than USB 1.1, and is ideal for connect-
ing high-speed USB interface peripherals such as USB HDD, digital cameras,
MP3 players, printers, modems and the like.
2
10
1
9
USB1/2
USB1/2 Pin Definition
PIN
SIGNAL
PIN
1
USBPWR
2
3
USBP2-
4
5
USBP2+
6
7
GND
8
9
NC
10
®
Front Panel I/O Connectivity
Pin
1
3
5
7
9
SIGNAL
USBPWR
USBP3-
USB1
USBP3+
GND
USBOC
2-22
2
10
9
1
USB3/4
(optional)
USB3/4 Pin Definition
Description
Pin
Description
+5V(SB)
2
GND
USB0-
4
(Cut away)
USB0+
6
USB1+
GND
8
USB1-
GND
10
+5V(SB)
USB3
USB4
(optional)
(optional)
USB2
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