Amazing Micro Tolerance Load Regulation technology ensures that the Seasonic PRIME 650 Titanium power supply will produce clean power at all times. Should there ever be a problem with the AC input power, this unit’s prolonged hold-up time will give ample buffer to prevent instabilities or, in case of a power shortage, it will allow the operating system save and store essential user data. Seasonic’s latest fan control design allows this unit to operate in fanless mode up to 45 % system load, to delight customers who are looking for a quiet power supply for their everyday usage.