This fully modular power supply performs admirably. It is quiet when demands are low since it responds to low demand by seldom activating its fan. When demand does increase, it is still rather quiet, reaching a moderate 22 decibels. The most sound it produces on my Corsair 200 case is 24 decibels during full gaming. Using ultra quiet Corsair 120mm case fans, I seldom, if ever, hear those spinning, so I know this PSU fan is making the sound during my PC's operations. If you want a reliable PSU to get you into a "better than most others" class, try the RM750x 80 Plus Gold Fully Modular ATX Power Supply. She is good to me and her factory twin should prove the same for you.