Be Quiet! Dark Power Pro BQT P9-550W Review (80 Plus Gold)

1. Introduction2. Be Quiet! Dark Power Pro 550W (Bundle and Cabling)3. Be Quiet! Dark Power Pro 550W (External)4. Be Quiet! Dark Power Pro 550W (Internal)5. Testing Methodology and Results6. Closing Thoughts7. View All Pages

The Dark Pro BQT P9-550W is an attractive unit, with a dark subdued appearance. The fan is protected behind a series of metal grills.

This is not a pure modular design, the basic cabling is hooked into the supply at the side. Surprisingly, the PSU is covered with plastic, which can be removed with some effort to get underneath to the metal body. The fan grill is a really attractive visual touch which immediately catches the eye.

At the rear, there is a power switch, and a power connector. The vents are the full width of the chassis to ensure the best possible airflow. The plastic casing on this side means that longer screws are needed to install into a standard computer chassis. These are supplied in the bundle so it is important to hang onto them.

The front panel contains all the modular cabling connectors – these are all clearly labeled and ideal for system builders to follow. To the side is an array of case fan connectors which is one of the nicest touches we have seen in recent months as it will really help improve cable routing when attaching multiple case fans. The power supply will also vary the speed of the fans in relation to the ambient temperatures. Additionally, there is a plastic surround on the fascia which helps prevent damage to the cable caused by potential over extension.

Be Quiet! Dark Pro Power BQT P9 550W
DC Output	+3.3V	+5V	+12V1	+12V2	+12V3	+12V4	-12V	+5Vsb
Max Output	24A	24A	20A	20A	25A	25A	0.5A	3A
Total Power	125W		540W				6W	15W
	550W

+12V1 and +12V2 can output 20A with +12V3 and +12V4 capable of delivering 25A each. 45A is possible across these rails.

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