Hello, thank you for replying. It came as part of my case (game max onyx) and it's connected to my pc via a 4 pin molex connector and the pcb is wired to a button that cycles the light colour/mode. The fans connect to the pcb with A connection that I'm not sure of the name but I will enclose a picture, I can't see any other connections or wire's, the pcb is just there as a fan hub and rgb control but i just don't know why it has lost most of its colours and if it is even possible to get the functions back.