MSI Z68A-G45 Série Manuel D'instructions page 27

MS-7750 Mainboard MS-7750 Mainboard
Front USB Connector: JUSB1/ 2/ 3/ 5
This connector, compliant with Intel
connecting high-speed USB interface peripherals such as USB HDD, digital cameras,
MP3 players, printers, modems and the like.
USB Bracket (optional)
Important
Note that the pins of VCC and GND must be connected correctly to avoid possible
damage.
Serial Port Connector: JCOM1
This connector is a 16550A high speed communication port that sends/receives 16
bytes FIFOs. You can attach a serial device.
En-16
I/O Connectivity Design Guide, is ideal for
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* The MB layout in this figure is for reference only.