What a surprise ... but the whole still very quiet. I was skeptical at first, as some reviewers wrote, the NT would be anything but quiet, but I can not hear any difference to my Bequiet and Chieftech - I've bought both primarily due to the low volume. And I am very sensitive when it comes to PC noise sources.
Since the part is also 80PLUS certified, I can tell myself at least, again to save a little more energy, and be happy about more efficiency.