MSI MS-6120 Manual page 33

The mainboard provides two 5-pin infrared (IR) connectors for IR modules.
These connectors are for optional wireless transmitting and receiving
infrared module. You must configure the setting through the BIOS setup to
use the IR function. FIR and Consumer IR are reserved functions for future
Super I/O chipset.
6
NC
NC
NC
CIRRX
NC
10
Note: Future Super I/O (w893977ATF) chip will provide FIR & Consumer
I/O. The IrDA connector support future feature, but it has not yet
been tested.
5
IRTX
GND
IRRX
NC
VCC
1
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