Table of Contents
Advertisement
MS-6791 M-ATX Mainboard
Front USB Connectors: JUSB1/2 or JUSB3/4
The mainboard provides two USB 2.0 pinheaders (optional USB 2.0
Bracket available). Users can choose either JUSB1/JUSB2 or JUSB3/JUSB4
depending on the model they purchased. The difference between these front
USB connectors is that JUSB1/JUSB2 are compliant with Intel
Connectivity 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.
JUSB3/4 Pin Definition
Pin
Description
1
VCC1
3
USBON
5
USBOP
7
GND3
9
GND4
2-24
Pin
Description
2
GND1
4
GND2
6
USB1P
8
USB1N
10
VCC2
®
Front Panel I/O
JUSB1
JUSB3
JUSB1/2 Pin Definition
Pin
Description
Pin
1
USBPWR
2
3
USBP4-
4
5
USBP4+
6
7
GND
8
9
NC
10
JUSB2
JUSB4
Description
USBPWR
USBP5-
USBP5+
GND
USBOC
Advertisement
Table of Contents
