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be quiet! Dark Power Pro 10 650 W Power Supply Review

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Transient Filtering Stage

As we have mentioned in other articles and reviews, the first place we look when opening a power supply for a hint about its quality, is its filtering stage. The recommended components for this stage are two ferrite coils, two ceramic capacitors (Y capacitors, usually blue), one metalized polyester capacitor (X capacitor), and one MOV (Metal-Oxide Varistor). Very low-end power supplies use fewer components, usually removing the MOV and the first coil. 

In the transient filtering stage, this power supply is flawless, with one X capacitor and two Y capacitors more than the minimum required, and with an integrated circuit called CAPZero to reduce power loss.

be quiet! Dark Power Pro 10 650 W power supplyFigure 9: Transient filtering stage (part 1)

be quiet! Dark Power Pro 10 650 W power supplyFigure 10: Transient filtering stage (part 2)

On the next page, we will have a more detailed discussion about the components used in the be quiet! Dark Power Pro 10 650 W.