Phantom is a beautiful case. the case has an onboard fan controller, one slider for each set of fans. from rear to front of cas they are: rear, top, LD side, side HDD and front HDD. the side HDD and front HDD have the option for two fans, two connectors for this on the controller, along with the top. I got my phantom used from Rich so it had all the fans hooked up, but you wont need to populate any of the 3-pin connecters on your board to hookup the fans, nor will you need a Molex 4-pin from your supply.