World class quiet and efficiency

The be quiet! Straight Power 11 PSU series provides a new level of silent performance for systems that demand whisper-quiet operation without the slightest compromise in power quality. The 80 PLUS® Gold label proofs the focus on efficiency of this latest generation of the Straight Power series. These all go to make the Straight Power 11 series more silent and efficient than ever and clearly the best choice when building new systems or as an upgrade to existing systems.

Straight Power 11


World-class Efficient and Power-Saving Operation

  • 80 PLUS® Gold certification with an extremely high operating efficiency of up to 93,6%
  • Innovative, wire-free design on the DC side inside the PSU body results in better cooling airflow, less signal disturbance and longer component life spans
  • Standby drain of less than 0.16 Watts

Virtually Inaudible Operation

  • The Silent Wings 135mm fan features an advanced fan frame, airflow-optimized fan blades, fluid-dynamic bearing and a high-quality 6-pole motor for minimal vibration
  • Funnel-shaped fan opening of the PSU case is relatively large and this permits a high airflow intake
  • The Silent Wings fan is decoupled from the PSU body with a special mounting, further reducing the transmission of vibration and noise
  • The fan speed is optimally varied to strike the best balance between sufficient cooling and deep quietness

Very High Power Conversion, Performance and Stability

  • LLC, Synchronous Rectifier (SR) and DC-to-DC power conversion technology for advanced stability and tight voltage regulation
  • High-quality Japanese capacitors rated to 105°C for maximum performance, reliability and operating life
  • Full suite of top safety protections that guard against over-currents, over and under voltages, short circuits, overheating and overloads, thus safeguarding your valuable components
  • 4 independent 12V-rails for improved power signal stability

Excellent Compatibility and Easy Usage

  • Convenient full cable management for maximum build flexibility, reduced clutter, improved airflow and better cooling
  • Sleeved cables with lengths of up to 115cm are perfect for large PC cases
  • multi-GPU support with up to 6 PCIe connectors

Outstanding Service and Support

  • 5-year manufacturer's warranty
  • Product conception, design and quality control in Germany