
1200W • 1000W  • 850W  • 750W  • 650W  • 550W
HIGHLIGHTSIDEAL APPLICATIONS
Advanced, high-resolution gaming
Overclocked systems 
Multi-GPU workstations 
3D graphics, photo and video editing 
Virtually inaudible SilentWings 
80PLUS
®
 Platinum (up to 94% efficiency) 
Overclocking key for multi- or single-rail use 
Top performance and stability for CPU and GPU
®
 3 135mm fan 
Legendary Silence, Cutting Edge Performance
Dark Power Pro 11 is be quiet!’s most advanced PSU series ever, delivering 80PLUS® Platinum efficiency, effortless  
Quad-GPU support, and unmatched silence.
Highlights » 
®
▪  80PLUS 
▪ Virtually inaudible SilentWings
 Platinum efficiency (up to 94%) and unmatched power stability 
®
 3 135mm fan with fluid-dynamic bearing
▪ 6-pole fan motor and IC motor control for smooth low-speed operation and reduced noise 
▪ Large funnel-shaped fan intake facilitates high airflow with less turbulence 
▪ Isolation sleeve reduces transmission of vibrations to case  
▪ Overclocking key switches between four 12V-rails and one massive 12V-rail 
▪ User-friendly cable management reduces clutter, improves cooling 
▪ Premium 105°C-rated capacitors maximize reliability 
▪ Intelligent control for up to 4 case fans  
▪ 5-years manufacturer’s warranty 
▪ Product conception, design and quality control in Germany 
Dark Power Pro 11 »  
Choose Dark Power Pro 11 and get the most technologically-advanced PSU be quiet! has ever built.
*According to the yearly PC Games Hardware‘s „Manufacturer of the year“ election (2006-2014) and market data from GfK (2007-2015).

Technical Data »
Model  120 0W 1000W 850W 750W 650W 550W
Article no. BN255 BN254 BN253 BN252 BN251 BN250
EAN code 4260052183809 4260052183793 4260052183786 4260052183779 4260052183762 4260052183755
Voltage / Frequency 110-24 0Va c / 
50-60Hz
ATX 12V 2.4 / EP S 12V 2.92
 /  /   /   /   /   / 
100-240Vac / 
50-60Hz
100-240Vac / 
50-60Hz
100-240Vac / 
50-60Hz
100-240Vac / 
50-60Hz
Dimensions (L x W x H) 193 x 150 x 86 193 x 150 x 86 193 x 150 x 86 180 x 150 x 86 180 x 150 x 86 180 x 150 x 86
®
SilentWings
 3 fan (mm) 135 135 135 135 135 135
Noise level (dB(A )) at 20 / 50 / 100% load  10.9 / 11.5 / 27.9 10.2 / 10.4 / 26.3 10.4 / 10.4 / 20.1 8.7 / 9.5 / 19.9 9.2 / 10 / 14.6 8.7 / 8.9 / 10.1
Efficiency (%) at 230V up to 94 up to 94 up to 94 up to 94 up to 94 up to 94
12V-r ails 4 4 4 4 4 4
IN GENERAL
Active P FC
OC P, O V P, U V P, S C P, O P P, O T P
Certifications
Energy Star 6.0 compatible
ErP2014 ready / Power in stand-by (W)
     
     
80PLUS® Platinum, 
AMD CrossFireX, 
NVIDIA SLI
     
/ 0 .10
80PLUS® Platinum, 
AMD CrossFireX, 
NVIDIA SLI
/ 0 .10
80PLUS® Platinum, 
AMD CrossFireX, 
NVIDIA S LI 
/ 0.09
80PLUS® Platinum, 
AMD CrossFireX, 
NVIDIA SLI
/ 0 .13
80PLUS® Platinum, 
AMD CrossFireX, 
NVIDIA SLI
/ 0 .14
Lifetime of PSU at 25°C (h) 150,000 150,000 150,000 180,000 180,000 180,000
No. of cables 19 19 19 19 17 17
Maximum cable length (cm) 120 120 120 120 120 120
Length of ATX-connection cable (cm) 60 60 60 60 60 60
CABLES
Modular cable management
Sleeved cables
ATX-Mainboard (20+4-pin)
     
     
     
PCI-Express (6+2-pin) 8 8 6 6 4 4
PCI-Express (6-pin) 1 1 1 1 1 1
P8-/P4-connector 1x P4+4 / 1x P8 1x P4+ 4 / 1x P8 1x P4+4 / 1x P8 1x P4+4 / 1x P8 1x P4+4 / 1x P8 1x P4+4 / 1x P8
S-ATA (5-pin) 10 10 8 8 8 8
CONNECTORS
P-ATA (4-p in) 7 7 7 7 5 5
FDD (Floppy) 2 2 2 2 1 1
100-240Vac / 
50-60Hz
®
80PLUS
/ 0 .15
 Platinum
Output Data »
AC Input 110–240Vac   5 0– 60Hz   15-9A
DC Output 3.3V 5V 12 V1 12 V2 12V3 12V4 -12V 5VSB
DARK POWE R 
PR O 11 
120 0W
 Max. Current 25A 25A
Max. C om-
bined Power
35A 35A
99A (peak 107A/20ms)
150 W 1188W (peak 1284W/ 20ms) 6W 15 W
1200W (peak 1300W/ 20ms)
AC Input 100–240Vac   50– 60Hz   13-7A
DC Output 3.3V 5V 12V 1 12V2 12 V3 12V4 -12V 5VSB
DARK POWE R 
PR O 11
850W
 Max. Current 25A 25A
Max. C om-
bined Power
30A 30A
 70A
140 W 840W 6W 15W
850W
AC Input 100–240Vac   50 – 60Hz   8-4A
DC Output 3.3V 5V 12V 1 12V2 12 V3 12V4 -12V 5VSB
DARK POWE R 
PR O 11
650W
 Max. Current 25A 25A
Max. C om-
bined Power
20A 20A
 54A
125 W 648W 6W 15W
650W
Version: 11/2015
We do not take responsibility for typographical errors. Similar Image.
45A 45A
35A 35A
25A 25A
0.5A 3A
0.5A 3A
0.5A 3A
DARK POWE R
PR O 11 
1000W
DARK POWE R 
PR O 11
750W
DARK POWE R 
PR O 11
550W
AC Input 100–24 0Vac   50– 60Hz   14-8A
DC Output 3.3V 5V 12 V1 12 V2 12 V3 12V4 -12V 5VSB
 Max. Current 25A 25A
Max. C om-
150 W 996W 6W 15W
bined Power
32A 32A
 83A
1000W
40A 40A
0.5A 3A
AC Input 100–240Vac   50 –6 0Hz   9 -4.5A
DC Output 3.3V 5V 12V 1 12V2 12 V3 12V4 -12V 5VSB
 Max. Current 25A 25A
Max. C om-
140 W 744W 6W 15 W
bined Power
25A 25A
 62A
750W
30A 30A
0.5A 3A
AC Input 100–240Vac   50–60Hz   7-3.5A
DC Output 3.3V 5V 12V 1 12V2 12 V3 12V4 -12V 5VSB
 Max. Current 25A 22A
Max. C om-
140 W 540W 6W 15W
bined Power
20A 20A
 45A
550W
25A 25A
0.5A 3A
bequiet.com

Cables »
600mm 100mm
4-pin 
20-pin 
24-pin 
12V P4-connector
12V P4-connector
12V P8-connector
1200W
600mm
700mm
1000W
600mm
700mm
850W
600mm
700mm
750W
600mm
700mm
650W
600mm
700mm
550W
600mm
700mm
P8-connector
PCIe 1 (6+2-pin)
PCIe 2 (6+2-pin)
PCIe (6+2-pin)
PCIe (6+2-pin)
PCIe / MB (6-pin)
PCIe (6-pin)
S-ATA S-ATA
S-ATA S-ATA
S-ATA
S-ATA S-ATA
HDD
HDD
HDDHDD
MB connector
OCK = Overclocking jumper
600mm 150mm 150mm 150mm 150mm
HDD HDD
S-ATA
HDD
FDD
External fan connector
OCK = Overclocking key
-
*
*
-
*
*
*
700mm
700mm
600mm
600mm
   3x
   3x
600mm -
600mm
-
*
600mm
600mm
*
600mm 
   2x
600mm
-
600mm
   2x
*
600mm
600mm*600mm
600mm 600mm600mm
*
600mm
600mm
   4x
   4x
600mm 600mm600mm
700mm
600mm 
   3x
700mm
600mm 
   2x
700mm
600mm 
  2x
---
600mm600mm600mm
*
600mm
*
-
*
*
*
600mm 
   2x
600mm
600mm
*
*
*
600mm
600mm 
   2x
600mm
*
*
600mm
--
600mm 
   2x
600mm
*
*
*
*
--
600mm 600mm600mm
*
600mm
   4x
*
600mm
   4x
*
*
600mm
   4x
600mm 600mm600mm
700mm
600mm 
   3x
600mm
FDD
S-ATA
600mm
600mm 
   2x
600mm
600mm
600mm
   4x
*cable length to first connector
Dimensions (mm) »
150.0
86.0
193.0 / 180.0
Certifications »
Contact »
Service Hotline: +49 40 7367 686 44 (Mo-Fr. 9:00-17:30)
Mail: service@bequiet.com
Version: 11/2015
We do not take responsibility for typographical errors. Similar Image.
2011/65/EU
6-Pole Fan Motor »
6 poles contribute to:
▪ smoother transition between magnetic poles
▪ less vibration for quiet operation
▪ reduced power consumption
▪ low start-up voltage
Virtually inaudible cooling for your system »
The fan quality is one of the main factors contributing to the noise level of 
your PC. As the German specialist for outstandingly quiet computer components we have more than 10 years of experience in the field of noise 
reduction. That knowledge allows us to produce the quietest fans on the 
market. 
Look for the +SilentWings Logo. It indicates our products which include our 
state-of-the-art fan te chnology and enables the perfect balance between 
superior cooling and serenity.
bequiet.com