be quiet! Pure Power 11 400W power supply unit 20+4 pin ATX ATX Black

  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.         Innovative Technologies  

DC-to-DC Active Clamp and Synchronous Rectifier

The use of Active Clamp and Synchronous Rectifier technologies provides very stable operation. The PSU is equipped with DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions. This ensures secure operation for next generation processors and graphics cards.         Exceptionally Silent Operation   

Achieved by a silence-optimized 120mm be quiet! fan

The silence-optimized 120mm be quiet! fan is thermally governed to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence enabling best-in-class quiet functionality and the almost inaudible operation that be quiet! is famous for.      High-Quality Sleeved Cables  

Keeping your system tidy and good-looking

Pure Power 400W is exquipped with high-quality sleeved cables that simplify component installation increase airflow and improve cooling. The All-in-one cable has a convenient easy-plug HDD connector.