Check out the epic build of my new gaming / creator PC with NZXT H9 Elite case, a 7900XTX GPU & Kraken Elite 360 AIO CPU cooler, AMD 7 7700x CPU MSI pro motherboard.... well just watch the video =)
the controller that comes with case can light 3 side fans and 3 bottom fans and power 9 fans... for the radiator it comes with its own separate controller, I don't know why you had to buy controller separately...