Seasonic Prime SSR-1000PD Active PFC F3 - Power supply (internal) - ATX12V - 80 PLUS Platinum - AC 100-240 V - 1000 Watt - active PFC

Improved circuit design and high-quality components have greatly increased the hold-up time measured under 100 % load, from an industry standard of 16 ms to above 30 ms. This substantial improvement means that even under unstable input current conditions the power supply will continue to output stable and precise current to ensure smooth operations.
Seasonic's continued commitment to excellent analog power supply design has suppressed ripple noise to fall well below the current industry average of 20 mV.
Seasonic's vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level.