MSI K9N2 User Guide - Page 28
Front USB Connector: JUSB1/ JUSB2/ JUSB3, Chassis Intrusion Connector: JCI1
UPC - 816909044867
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Page 28 highlights
MS-7375 Mainboard Front USB Connector: JUSB1/ JUSB2/ JUSB3 This connector, compliant with Intel® I/O Connectivity Design Guide, is ideal for connecting high-speed USB interface peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the like. 10 9 21 JUSB1 / 2/ 3 Pin Definition PIN SIGNAL 1 VCC 3 USB0- 5 USB0+ 7 GND 9 Key (no pin) PIN SIGNAL 2 VCC 4 USB1- 6 USB1+ 8 GND 10 NC USB 2.0 Bracket Important Note that the pins of VCC and GND must be connected correctly to avoid possible damage. Chassis Intrusion Connector: JCI1 This connector connects to the chassis intrusion switch cable. If the chassis is opened, the chassis intrusion mechanism will be activated. The system will record this status and show a warning message on the screen. To clear the warning, you must enter the BIOS utility and clear the record. 1 CINTRU GND JCI1 2-14