professional product.

It is true has seen first it seems a bit expensive, but that is not the case for this product. Noctua is pro product. Forni with conventional fasteners screws or fasteners caoutchou anti vibration (despite the fan not vibrate, far from it!). 6 years manufacturer's warranty, it means what it means. Supplied with connectors for installation in multiple configurations. Personally I adopted for the chassis cooling, it is very quiet. For those doing assembly I highly recommend