volume:
inaudible in the server room ... that's postiv but eig also completely ... no matter volume plays no role there ...
power:
I am disappointed ... certainly something better than a normal fan, but the performance is praised or mentioned here and in all of the test, I can not confirm absolutely .... I myself asked if I did something wrong .... But the fans were quite normal with the adapter which is connected here ... so this prop should run on 100% ...
am really disappointed .... possibly go the parts back ...