be quiet! Pure Power 11 400W

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.

• 80 PLUS® 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
• Full suite of top safety features 
• 5-year manufacturer’s warranty