The product was delivered without screws to fix the fans in the case. So it sucks. In addition, at 100% performance, the fans mounted on the top of the case, which blow air from above, are very loud and almost make a squeaking noise. The ones mounted on the front of the case don't, so I guess it's only the case if they're oriented that way. Other than that, they have a number of different modes, or you can plug them into the motherboard. Be careful when connecting the reset switch from the case to the controller. When I took out the reset cable, the pins in the controller immediately popped up and it was very difficult to pull them down to hook my case's reset cable.
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