750W PSU 80Plus Gold be quiet! Straight Power 11 Power Supply – BN283


Be Quiet! 750W Straight Power 11 PSU, Fully Modular Power Supply, Fluid Dynamic Fan, SLI/XFire, 80 Gold

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SKU: BN283 Category: Tags: , ,


Be Quiet! 750W Straight Power 11 PSU, Fully Modular, Fluid Dynamic Fan, SLI/XFire, 80+ Gold

World Class Quiet and Efficency

    be quiet! Straight Power 11 750W raises the bar for systems that demand virtually inaudible operation without power quality compromises.

      Virtually inaudible SilentWings® 3 135mm fan

    Funnel-shaped fan opening of the PSU case for high airflow intake

    Wire-free inside the PSU on the DC side for enhanced cooling and longevity 

    Full cable management for maximum build flexibility

    80PLUS® Gold efficiency (up to 93%)

    Powerful multi-GPU support with four PCI-Express connectors

    Japanese 105°C-rated capacitors ensure stability and reliability

    ErP and Energy Star 6.1 ready

    5-year manufacturer’s warranty

Silent Wings® 3 Fan

  Provides virtually inaudible operation

    The high-end SilentWings® 3 fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.

Funnel-Shaped Fan Opening

  Higher cooling performance

    The fan inlet of the Straight Power 11 750W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.

Wire-Free Design Inside The PSU

    Pushing the longevity of components to a maximum

    An absolute innovation: The Straight Power 11 750W is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

Fully Modular Cable Management

  Utmost convenience and compatibility

    Thanks to the fully modular cable management, cables that serve no purpose in the system are left out. For this reason systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.

80PLUS® GOLD Certified

  Impressively high efficiency

    Straight Power 11 750W is certified with 80PLUS® Gold efficiency, reaching up to 93%. This gives less power consumption and a cooler and quieter operation. Truly a benefit for any system.

High-Class Technologies

  Compatibility for the systems of tomorrow

    The use of LLC and Synchronous Rectifier (SR) provides very stable operation and enhanced voltage regulation.The PSU is equipped with DC-to-DC conversion for tight voltage regulation even under heavy cross-loading conditions. This ensures reliable operation with the next generation of processors and graphics cards.

Japanese 105° Capacitors

  A testament to high quality

    Only the best components are used in Straight Power 11 750W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life.


Form Factor: ATX

Modular: Fully Modular

Series: Be Quiet! Straight Power 11

Compatability: ATX 12V 2.4 & EPS 12V 2.92

Wattage: 750 W

Connectors: “1 x ATX-Motherboard (20+4-pin)

1 x P8 (CPU)

1 x P4+4 (CPU)

4 x PCI-E 6+2-pin (GPU)

4 x PATA 4 pin

11 x SATA 15-pin (HDD, Drives)

1 x FDD (Floppy)

4 x Mainboard connector (PATA 4-pin)”

Rail Design: Quad +12V

AC Input: AC 100-240 V

PFC: Active PFC

Fan Type: SilentWings 3 fan (fluid-dynamic bearing)

Fan Bearing: Fluid / Hydraulic Bearing

Noise: dB(A) at 20% load: 8.4

dB(A) at 50% load: 9.01

dB(A) at 100% load: 21.23

80+ Certification: 80+ Gold

Efficiency: up to 93.6%

MTBF: “100,000 hours”

Protection: Over current

Over voltage

Under voltage

Short circuit

Over temperature

Over power

Weight/Dimensions: 3.04 kg

170 x 150 x 86 mm

Package Weight: 3.5900 kg

Warranty: 5 Years

Additional information

Cable Type

Fully Modular




80 Plus Gold


Be Quiet!



Power Type

Power Supply





model number



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