Its a Xclio Windtunnel Advance, here's the like to the case itself XClio There is a fan controller built into the case, but the website has a Q&A and it says that it's supposed to connect to the 4 pin connector on the power supply. But they're both "girl" ends.. So I'm thinking possibly that the wrong end might have been put on the end of the wires, because the rear fan has a 4 pin connector "male end" that actually fits into the controller and the controller has the connector that the side fans have... That's just a speculation though