Hi guys , I have been wondering for the past couple of hours what to do as i am moving all my parts from one case to another . My fans in my computer right now are connected to the motherboard on the headers . As iam biulding a pc I have been watching videos on how to do so , and the guy who was building the pc connected his fans to this molex connecter Via the power supply . To do this do you need an molex adapter for your 3-4 pin fans or do you just plug the fans into the molex connecter which comes out of the psu ? ( I am learning about pcs !)