be quiet! Dark Power Pro 11 power supply unit 1200 W 20+4 pin ATX ATX Black

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  • DARK POWER PRO 11
  • 1200W
  • 12V
  • 80PLUS Platinum
  • AMD CrossFireX
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SKU #: BN255
EAN #: 4260052183809
UNSPSC #: 39121004
  • Full bridge, LLC, SR and DC/DC technology delivers 80PLUS® Platinum power efficiency (up to 94%) and power stability unmatched in its class
  • Virtually inaudible SilentWings® 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 Japanese capacitors maximize reliability
  • Intelligent control for up to 4 case fans
  • German product conception, design and quality control
More Information
Purpose PC
Total power 1200 W
Power supply unit (PSU) form factor ATX
SKU BN255
EAN 4260052183809
Manufacturer be quiet!
Availability Out of Stock
Cooling
Fan diameter13.5 cm
Number of fans1 fan(s)
Fan speed1800
Cooling typeActive
Design
80 PLUS certification80 PLUS Platinum
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Product colourBlack
Fan diameter13.5 cm
Number of fans1 fan(s)
Fan speed1800
Cooling typeActive
Power
Total power1200 W
Peak power1300 W
AC input voltage110 - 240 V
AC input frequency50 - 60 Hz
Input current15 A
Power factor0.99
Maximum input current (@110V)+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Combined power (+3.3V)25 W
Combined power (+5V)25 W
Combined power (-12V)0.5 W
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time21.80 ms
Efficiency94%
Ports & interfaces
Motherboard power connector20+4 pin ATX
Number of SATA power connectors10
Peripheral (Molex) power connectors (4-pin)7
EPS power connector (8-pin)Yes
PCI Express power connectors (6-pin)1
PCI Express power connectors (6+2 pin)8
CPU power connector (4+4 pin)Yes
Floppy drive power connector2
Floppy disk drive connectorYes
CPU power connectors (8-pin)1
Cabling typeSemi-Modular
Performance
Power supply unit (PSU) form factorATX
Noise level (quiet mode, 50%)11.5 dB
Noise level (full-load mode, 100%)27.9 dB
80 PLUS certification80 PLUS Platinum
PurposePC
ATX version2.4
EPS version2.92
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Weight & dimensions
Width150 mm
Depth193 mm
Height86 mm
Weight2.38 kg
Packaging data
Package depth514 mm
Package width305 mm
Package height378 mm
Package typeBox
Package weight4.59 kg
Technical details
Sustainability certificatesENERGY STAR
Compliance certificatesRoHS
Certificates
80 PLUS certification80 PLUS Platinum
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Other features
Noise level (quiet mode, 50%)11.5 dB
Noise level (full-load mode, 100%)27.9 dB

80 PLUS ® PLATINUM CERTIFIED

Dark Power Pro 11 1200W is certified with 80 PLUS Platinum and an energy efficiency rating of up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.

SILENT WINGS 3 FAN

The decoupled be quiet! Silent Wings 3 135mm fan provides virtually inaudible operation. This is thanks to its unique, airflow-optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor for less vibration, super-long life and minimal power consumption.

FUNNEL-SHAPED FAN OPENING

The fan inlet of the Dark Power Pro 11 1200W is funnel shaped. This causes an increased throughput of air, which results inhigher cooling performance.

READY FOR OVERCLOCKING

Dark Power Pro 11 1200W is particularly suitable for overclocking, thanks to its strong and stable 12V-rails. The overclocking key empowers you with full control for overclocking by manual switching between the default four 12V-rail mode and the alternative massive single-rail operation.

EQUIPPED WITH HIGH-END FEATURES

Dark Power Pro 11 offers 1200W of continuous power with four independent 12V-rails for excellent signal stability and nine PCI express connectors for multi-GPU systems. Up to four case fans can be connected to, and regulated by the PSU.

MAXIMUM CONVENIENCE

The maximum utility afforded by extra-long sleeved cables of up to 120cm and modular cable management simplifies component installation and reduces annoying clutter. This succeeds in increasing the airflow and improving the cooling in even the largest PC cases.

STATE-OF-THE-ART TECHNOLOGIES

Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. It is also equipped with DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions. This ensures reliable operation for the next generation of processors and graphics cards.

JAPANESE 105° CAPACITORS

Only the best components are used in Dark Power Pro 11 1200W. That is why we have built exclusively high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C which ensures stability, reliability and a long operating life.

Dark Power Pro 11 1200W is be quiet!’s most advanced PSU ever, delivering 80PLUS® Platinum efficiency, effortless Quad-GPU support, and unmatched silence.

Choose Dark Power Pro 11 1200W and get the most technologically-advanced PSU be quiet! has ever built.
Cooling
Fan diameter13.5 cm
Number of fans1 fan(s)
Fan speed1800
Cooling typeActive
Design
80 PLUS certification80 PLUS Platinum
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Product colourBlack
Fan diameter13.5 cm
Number of fans1 fan(s)
Fan speed1800
Cooling typeActive
Power
Total power1200 W
Peak power1300 W
AC input voltage110 - 240 V
AC input frequency50 - 60 Hz
Input current15 A
Power factor0.99
Maximum input current (@110V)+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Combined power (+3.3V)25 W
Combined power (+5V)25 W
Combined power (-12V)0.5 W
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time21.80 ms
Efficiency94%
Ports & interfaces
Motherboard power connector20+4 pin ATX
Number of SATA power connectors10
Peripheral (Molex) power connectors (4-pin)7
EPS power connector (8-pin)Yes
PCI Express power connectors (6-pin)1
PCI Express power connectors (6+2 pin)8
CPU power connector (4+4 pin)Yes
Floppy drive power connector2
Floppy disk drive connectorYes
CPU power connectors (8-pin)1
Cabling typeSemi-Modular
Performance
Power supply unit (PSU) form factorATX
Noise level (quiet mode, 50%)11.5 dB
Noise level (full-load mode, 100%)27.9 dB
80 PLUS certification80 PLUS Platinum
PurposePC
ATX version2.4
EPS version2.92
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Weight & dimensions
Width150 mm
Depth193 mm
Height86 mm
Weight2.38 kg
Packaging data
Package depth514 mm
Package width305 mm
Package height378 mm
Package typeBox
Package weight4.59 kg
Technical details
Sustainability certificatesENERGY STAR
Compliance certificatesRoHS
Certificates
80 PLUS certification80 PLUS Platinum
SafetyCE, CB, TÜV, FCC, cTUVus, RCM, CU
CertificationErP, WEEE
Other features
Noise level (quiet mode, 50%)11.5 dB
Noise level (full-load mode, 100%)27.9 dB