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Black rectangular ATX power supply unit with mesh front grille and modular cable sockets

be quiet!

be quiet! BN660 Dark Power 13 850W ATX 3.0 power supply

SKU CH-D9BN-HV3VF MPN BN660

850 W ATX 3.0 power supply with 80 PLUS Titanium efficiency and native 12VHPWR connector for PCIe 5.0 graphics cards

  • Max wattage850 W
  • Modular cablingYes
  • Fan configuration1
  • Power factor correctionActive
  • Main power connector20+4 Pin
  • 12V rails4

Model Dark Power 13

Capacity 850W

  • 80 PLUS Titanium efficiency reaches up to 95.4 percent
  • ATX 3.0 compliance with native 12VHPWR for PCIe 5.0 graphics cards
  • Silent Wings fan and funnel-shaped inlet deliver virtually inaudible operation
  • Overclocking key selects four 12V rails or one massive 12V rail
  • Fully modular cables with twelve SATA connectors simplify build management

850W ATX 3.0 power supply for high-end PCs

This 850W unit meets the ATX 3.0 specification and carries 80 PLUS Titanium certification for up to 95.4% efficiency. It targets builders who need reliable power for current and next-generation graphics cards. The fully modular design uses a 175 mm chassis that fits standard ATX cases.

Silent Wings fan and Titanium efficiency

A frameless Silent Wings fan on a tripod mount moves air through a funnel-shaped mesh inlet for high flow at low noise. Active rectifier plus full-bridge LLC topology keeps the +12V rails stable while maintaining Titanium-level efficiency across the load range. Four 12V rails can be merged into one massive rail via the overclocking key.

Sustained load stability and protection

Under continuous demand the LLC resonant converter and active rectifier hold voltage regulation tight while the fan curve stays quiet. Over-voltage and overload protection circuits engage automatically if limits are exceeded. The platform is rated for more than 100,000 hours MTBF at 50/60 Hz input.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $157.99
Typical for this category: the median of 10,869 items is $142.99.
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

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Specifications

Product
Brand namebe quiet
Product colorBlack
Product typeATX 3.0 Compatible
Performance
Frequency50/60 Hz
Ports & slots
PCIe power connectors4 × 6+2 Pin
SATA power connectors12
12V power connector1 × 4+4 Pin ATX/EPS 12 V, 1 × 8 Pin EPS 12 V
Peripheral connector3
Power
Max wattage850 W
Modular cablingYes
Power factor correctionActive
Main power connector20+4 Pin
12V rails4
Efficiency certification80 PLUS TITANIUM Certified
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current14A @ 115 V, 7A @ 230 V
+3.3V max. current24A
+5V max. current24A
+12V1 max. current30A
+12V2 max. current30A
-12V max. current0.5A
+5VSB max. current3A
Under voltage protectionYes
Over current protectionYes
Over power protectionYes
Size & build
Top fans size135 mm
Shipping weight4.63 kg
Package size349 × 273 × 121 mm
Compatibility
PSU length limit175 mm
In the box
Fans total quantity1
Environment & compliance
Over temperature protectionYes
More details
Fan configuration1
Mean time between failures>100,000 h
Over load protectionYes
Short circuit protectionYes

Other versions of this model

4 more in the same range

Questions about this item

How do I install the BN660 and which step do people often get wrong?

Mount the 175 mm unit in the case, plug the 20+4 pin main connector and only the modular cables your build needs, then flip the overclocking key to four 12V rails or one massive 12V rail before first power-on — forgetting the key position is the common mistake.

What maintenance or replacement will the Dark Power 13 850W need later?

The Silent Wings fan is rated beyond 100,000 hours MTBF; under normal use it rarely requires service, but if bearing noise ever appears the single fan module can be swapped without replacing the whole PSU.

What limit appears first under sustained full load on the BN660?

The 850 W maximum power ceiling is reached before any thermal throttle, and the 80 PLUS Titanium 95.4% efficiency keeps waste heat low enough that the fan stays near its minimum speed.

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