MSI VB9 User Manual page 18

3. Keyboard Connector (5-pin female): PS2_KB
This connection is for a standard IBM-compatible or a 101 enhanced keyboard.
4. PS/2 Mouse Connector (5-pin block): MS-PIN
You must purchase an optional PS/2 mouse set for connection of 5-pins block to mount
on an open slot of your computer's case.
5. Parallel Printer Connector (26-pin Block): LPT
Connection for the enclosed parallel port ribbon cable with mounting bracket. Connect
the ribbon cable to this connection and mount the bracket to the case on an open slot. It
will then be available for a parallel printer cable.
NOTE: Serial printers must be connected to the serial port. You can enable the parallel
port and choose the IRQ through BIOS Setup.
6. Serial port COMA and COMB Connector (Two 10-pin blocks): COM1, COM2
These connectors support the provided serial port ribbon cables with mounting bracket.
Connect the ribbon cables to these connectors and mount the bracket to the case on an
open slot. The two serial ports on the mounting bracket will then be used for pointing
devices or other serial devices. See BIOS configuration of "Onboard Serial Port"
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