Switch and a keyboard

[Romanscottbradley]

Hi
Does anyone know how you attach a switch to a keyboard? Do I need a usb c? Or an adapter? My son is keen to do this thanks

 

[Romanscottbradley]

That didn’t work. The YouTube videos say you need a usb c? X

 

[Romanscottbradley]

He wanted a gaming pc but there so expensive and his friends do this.. the new craze lol