- Does the Job! - Installed on a front casing 5 Fractal Design which already has both original and can adjust the tension on three levels. - As hard drives are perfectly cooled with the first, second sends air to the motherboard and the third rear exhausts the hot air. I do not know if it is original (I doubt it), but the blades of the fan are slightly curled at the ends, it stings a little eyes. I think it just seems, suddenly hot during storage or during delivery. That is why I take a star that I believe has nothing to do with Fractal Company.