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be quiet! Dark Power Pro 11 BN253

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Outdated Product
£149.99 
Power: 850; Cooling system: 1 fan; MB/CPU power supply: 24+8+8(4+4); Manufacturer's warranty: 5 years;
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be quiet! Dark Power Pro 11 [BN253]
£149.99 
be quiet! Dark Power Pro 11 BN253
Main
Power850 W
Form factorATX
Specs
PFCactive
Efficiency93 %
Cooling system1 fan
Fan size135 mm
Certification80+ Platinum
ATX12V version2.4
EPS12V version2.92
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA8
MOLEX7
PCI-E 6pin1
PCI-E 8pin (6+2)6
Floppy / 2 pcs /
Cable systemsemi-modular
Braided wires
Cable length
MB700 mm
CPU700 mm
SATA600 mm
PCI-E750 mm
Max. power
+3.3V25 A
+5V25 A
+12V130 A
+12V230 A
+12V335 A
+12V435 A
-12V0.5 A
+5Vsb3 A
+12V840 W
+3.3V +5V140 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, UVP, OTP
Noise level20 dB
Manufacturer's warranty5 years
Dimensions (HxWxD)86x150x193 mm
Weight2.93 kg / with cables /
Added to E-Catalogdecember 2015
High efficiency (80+ Platinum). Reliable OEM platform manufactured by FSP. Japanese capacitors. Minimum noise level. +12V line switching button. Possibility to connect up to 4 external fans. Separate power stabilization system.

Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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Video reviews

The king of power supplies

brand be quiet! strongly associated with expensive and high-quality A-class products. However, the Dark Power Pro 11 power supply stands out even against the background of eminent brothers, its list of regalia is really impressive. For example, its efficiency reaches 94% (as evidenced by the 80+ Platinum certificate), it can work 24/7 at an ambient temperature of 50 °C (meets the requirements of server hardware), and the hardware platform is well-known OEM for overclockers -platform from FSP.

Taking care of overclockers

The concern for overclockers does not end there. For example, a separate switch for operating modes of the + 12V line is placed on the power supply case: it can be single or divided into four “virtual” channels with current limits. At the same time, the channel itself is dedicated and boasts a load capacity of 99% of the rated power. You can connect 4 additional coolers to the power supply itself, which will work in sync with the stock cooler. Well, the exceptionally quiet operation of that goodness is achieved thanks to the branded cooler be quiet! SilentWings on a hydrodynamic bearing.

For assembly of any complexity

There is no point in talking about line stability, peak power reserve and ripple frequency, all these indicators are at the level of the best power supplies on the market. The power reserve of 13%, which is available at peak loads, is also impressive. As a result, the tested model can no doubt be recommended for use in high-end systems with multiple video cards. Perhaps the only thing that can stop you from buying such a device is the high cost. But this is an uncompromising flagship with no weaknesses, so the price is justified. It is also one of the longest blocks in its category, be sure to consider this before buying.

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