MSI MS-6183 Manual page 18

2.8 IrDA Infrared Module Connector: IR (J9)
The mainboard provides one 5-pin infrared (J9) connector for IR modules.
This connector is for optional wireless transmitting and receiving infrared
module. You must configure the setting through the BIOS setup to use the
IR function.
1
VCC NC IRRX GND IRTX
IR
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