The Dark Power Pro 12 is the most efficient Power Supply Unit be quiet! has ever built. Featuring an unrivalled efficiency of up to 94.9% resulting in our first 80 PLUS® Titanium label, and fully digital control of PFC and LLC+SR/12V, leading to a better regulation and lower ripple noise. This makes the Dark Power Pro 12 a paragon of efficiency and stability. Next to an unmatched efficient operation, the patented frameless fan concept with a Silent Wings fan guarantees an optimized cooling effect and a virtually inaudible operation at ordinary loads. All these features make the new Dark Power Pro 12 the most progressive power supply be quiet! has ever built.