I currently run the H5 Elite case and was looking into getting the F120 case fan three pack for the top and back of the case. This is my first PC build so I'm not exactly sure what I should be thinking about. So first, the three fans included in the case I think are taking three case fan slots on the motherboard. If I were to get another three fans, how do I connect them? Do I need to connect them all together through another device so I can plug it in all at once to the motherboard?

Second, the pack comes with a another RGB controller. Would it be a problem running both that one, and the one the case came with? I'm not sure how everything connects together. The RGB controller was already built into the case and I don't remember how it connected to the motherboard other than the case fans. My motherboard is the MSI B650-P.