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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

Front Panel I/O

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.

Pin Description Pin Description

1 USBPWR 2 USBPWR

3 USBP4- 4 USBP5-

5 USBP4+ 6 USBP5+

7 GND 8 GND

9 NC 10 USBOC

JUSB1/2 Pin Definition

Pin Description Pin Description

1 VCC1 2 GND1

3 USBON 4 GND2

5 USBOP 6 USB1P

7 GND3 8 USB1N

9 GND4 10 VCC2

JUSB3/4 Pin Definition

JUSB2JUSB1

JUSB4

JUSB3

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 82 83

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MSI MS-8801 Guía de usuario Pagina 35