"There is no easy way to say this but Cougar with its great brand of fans has made a chassis with poor air flow. The single rear fan maxes out at around 1100 RPM and while dead silent, it doesn't move any air to be really called a fan. This chassis would benefit greatly from a font or top fan to get the air moving, even if it is a low RPM fan. A solution for the customer, who is looking to maximize savings, could invest in an AIO Cooler (All-In-One) like a Corsair H60 and use the now spare fan either in the front or top. In either case, if the goal is to have a lot of air movement, this isn't it, unless you add some more fans yourself.”



Link: OCC