Be Quiet! 400W Pure Power 11 PSU, Fully Wired, Rifle Bearing Fan, 80+ Gold
  • Be Quiet! 400W Pure Power 11 PSU, Fully Wired, Rifle Bearing Fan, 80+ Gold

    Exceptionally Quiet, Superior Reliability, Great Value


    Pure Power 11 400W offers peerless dependability and best-in-class features. Whether you’re assembling a very quiet system, building a multi-GPU gaming system, or upgrading an existing PC, your build will benefit from this PSU that simply has the best combination of features at a very popular price.


    • 80PLUS® Gold efficiency (up to 92%)
    • Two strong 12V-rails
    • Stable operation thanks to Active Clamp and Synchronous Rectifier (SR) technology
    • DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions  
    • Silence-optimized 120mm be quiet! fan
    • Multi-GPU support with two PCIe connectors
    • High-quality sleeved cables with easy-plug HDD connector  
    • Full suite of top safety features 
    • Meets latest Intel® C6/C7, ErP and Energy Star guidelines
    • Supports all Intel® and AMD™ processors
    • 5-year manufacturer’s warranty
    • Product conception, design and quality control in Germany



    80 Plus Gold Certification 


    Very high operating efficiency

    Pure Power 11 400W is certified 80 PLUS Gold with an efficiency rating of up to 92% – a truly outstanding level for this class of PSU. The most compelling benefit: lower power consumption and consequently lower costs, and cooler, quieter operation.





    Power and Compatibility for your System


    The best combination of features and performance at a very popular price

    Pure Power 11 offers 400W of continuous power with two independent 12V rails for signal stability and two PCI express connectors for multi-GPU systems. It is suited to very quiet systems, for upgrading or building multimedia or multi-GPU gaming systems.



    • Specification

      Product Description

      Be Quiet! 400W Pure Power 11 PSU, Fully Wired, Rifle Bearing Fan, 80+ Gold, Cont. Power

      Form Factor



      Fully Wired


      Be Quiet! Pure Power 11


      ATX 12V 2.4


      400 W


      1 x ATX-Motherboard (20+4-pin)
      1 x P4+4 (CPU)
      2 x PCI-E 6+2-pin (GPU)
      2 x PATA 4-pin
      5 x SATA 15-pin (HDD, Drives)
      1 x FDD (Floppy)

      Rail Design

      Dual +12V

      AC Input

      AC 100-240 V


      Active PFC

      Fan Type

      Silence-optimized be quiet! fan


      dB(A) at 20% load: 10.5
      dB(A) at 50% load: 11.4
      dB(A) at 100% load: 14.9

      80+ Certification

      80+ Gold


      230V, 20% load: 87.1%
      230V, 50% load: 90.9%
      E230V, 100% load: 89.5%


      100,000 hours


      Over current
      Over voltage
      Under voltage
      Short circuit
      Over temperature
      Over power


      See Overview


      150 x 150 x 86 mm
      1.9 kg

      Package Weight

      2.2200 kg


      5 Years