Noob irDA question

Hello, I have a mobo with an irda header but I do not know what I have to plug into the header so that I can use a remote control. It seems I must have some kind of at least photodetector, in maybe a 3.25" or 5.25" front-of-case bracket? But I can’t seem to find a third party product!

Can anyone suggest some hardware?

Although I’ve had motherboards with IrDA capability, (usually linked to one of the serial ports AFAIR), they’re not commonly used. This is what I managed to dig up:

Motherboard IrDA Port Adapter

If you feel game, you may want to make your own

Building Infra Red eye (IrDA) for PC-motherboard

All about Infraredports, IrDA and Infrared