Molex to fan connectors

We'll I was considering the Zalman z11 plus as case. But while looking at some reviews the 80mm fans in the side panels have 4-pin molex connector. Now since this is going to be my first build I don't know if you have to buy an transistor cable to fan connector or not? Or the cables just come with your motherboard or something? Please help me.

Thanks already.

case fans that use 4pin molex hook into your psu. They are not meant to connect to your motherboard.

we'll thankyou, now I leared something new.

Any fan that need variable speed, like cooling fans that will spin faster based on cpu load, will come with a 3pin/pwm cable that plug straight into the motherboard. They hook into the motherboards fan controller.