be quiet! Straight Power 11
1000 W
100 - 240 V
1070 W
50 - 60 Hz
13 A
Limited Stock

be quiet! Straight Power 11 power supply unit 1000 W 20+4 pin ATX ATX Black

£214.99 (£179.16 + VAT)

be quiet! Straight Power 11. Total power: 1000 W, AC input voltage: 100 – 240 V, Peak power: 1070 W. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 60 cm, SATA power cable length: 550 mm. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Fan diameter: 13.5 cm, Number of fans: 1 fan(s). Width: 150 mm, Depth: 170 mm, Height: 86 mm

Estimated delivery by: 04/10/2023

SKU: be quiet!/BN285 Category:

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Product Information

World Class Quiet and Efficiency
be quiet! Straight Power 11 1000W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.

– Virtually inaudible operation thanks to a SilentWings® 3 135mm fan
– Big funnel-shaped fan opening of the PSU case for high airflow intake
– Wire-free on the DC side inside the PSU for enhanced cooling and longevity
– Full cable management for maximum build flexibility
– 80PLUS® Gold certification with an efficiency of up to 93%
– Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
– Four high-performance 12V-rails
– Powerful multi-GPU support with six PCI-Express connectors
– Japanese 105°C-rated capacitors ensure stability and reliability
– Power signal stability unmatched in its class
– ErP and Energy Star 6.1 ready
– 5-year manufacturer’s warranty
– Product conception, design and quality control in Germany


The high-end Silent Wings 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.


The fan inlet of the Straight Power 11 1000W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.


An absolute innovation: The Straight Power 11 1000W 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.


Thanks to the modular cables, all 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.


Straight Power 11 1000W is certified with 80 PLUS ® Gold efficiency, reaching up to 93%. This gives less power consumption and a cooler and quieter operation. Truly a benefit for any system.


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.


Only the best components are used in Straight Power 11 1000W . 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.

  • Virtually inaudible SilentWings® 3 135mm fan
  • Wire-free design inside the PSU
  • 80PLUS® Gold efficiency of up to 93%
  • Convenient full cable management

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