Fan is extremely quiet, is with me as a CPU fan on an AIO-water cooler for a i5-4690. CPU remains at max. 62 ° C, and the fan is only max. ever heard. GPU and even the AIO water pump are more audible than the fan itself. Of course, care must be taken to the required air flow, that this is sufficient for a cooling. In my view, despite a proud price of the fans their money's worth in every respect - quiet, top handles and decoupled! Already one years fan runs now without hesitation and gets my full recommendation to buy.
