The PSU itself seems not very Powerful at first glance quite small and the attached fan. But because you are mistaken! The power supply is quiet after installation very much. The only thing that bothers me is the arrangement of the SATA connector! Namely, these are in the same direction - but unfortunately "the wrong way round" installed. Since the cable wires are well insulated to the plug, the complete cable has to be turned 180 degrees at each connector. If 4 devices must therefore quite a few times turn what looks not only stupid, but also the cable is not necessarily good for you. Otherwise, I am fully satisfied. 6x PCI-E connectors for the future should be enough for now. Arctic has sent the power adapter itself very quickly.