be quiet! Dark Power Pro 11 550W 12V ATX Power Supply | 80 Plus Platinum Certified | Fully Modular Power Supply | Low-Noise | Silent Wings 3 Fan

• 80PLUS® Platinum certification and up to 94% power conversion efficiency
• Virtually inaudible operation thanks to a broad array of optimizations, including the use of a be quiet! SilentWings® 3 135mm fan
• SilentWings® 3 fan features an advanced fan frame, an airflow-optimized fan blade, fluid-dynamic bearing with copper core and a high-quality 6-pole motor for less vibration
• The funnel-shaped fan opening of the PSU case is significant big and allows high airflow intake
• 550 Watts of continuous power provide intensive power reserves for demanding computing applications
• Overclocking key allows switchover between quadruple independent 12V-rail mode and high-performance single-rail operation
• Cable management with extra long cable reach simplifies component installation and reduces annoying clutter, increasing airflow and improving cooling in even the largest PC cases
• Product conception, design and quality control in Germany

Energy Efficiency

• 80PLUS® Platinum certification with up to 94% efficiency
• Saving power means saving money, but it also mean less waste heat, less cooling required, and overall quieter operation
• Standby drain less than 0.13Watts
• Meets Energy Star 6.0 guidelines
• Fulfills the ErP 2014 guidelines
• Zero Load design supports Intel’s Deep Power Down C6 and C7 modes

Virtually Inaudible Operation

• Installed SilentWings® 3 135mm fan includes a wide array of electronic and mechanical optimizations for best-of-class airflow with very low noise production, including:
  • Unique airflow-optimized fan blade design reduces noise-generating fan turbulence
  • Advanced fluid dynamic bearing with copper core provides for greatly reduced operating noise and super-long life
  • 6-pole fan motor smoothes operation even at very low speeds
  • High quality IC motor controller reduces electrical noise
• PSU case has a large funnel-shaped fan opening that facilitates high airflow intake
• SilentWings® 3 fan is decoupled from the PSU body with special rubberized ring mount, reducing transmission of vibration and noise
• Dual-layer PSU housing with rubberized sleeve isolates your chassis from PSU noise and vibration, further enhancing silence
• Optimized PSU airflow generates superior cooling at lower fan speeds, reducing turbulence and allowing even quieter operation
• Variable fan speed is optimally governed to strike the best balance between proper cooling and deep quietness
• Up to four case fans can be connected to, and regulated by the PSU, thus reducing overall system noise even further

Engineering

• Unmatched signal stability and unbeatable power efficiency thanks to advanced half bridge, LLC, Synchronous Rectifier (SR) and DC-to-DC power conversion circuitry design
• Overclocking key allows you to choose between multi-rail operation with four independent 12V-rails and high-performance single-rail operation
• Premiere-quality capacitors rated to 105°C for maximum reliability and operating life
• Increased output of 12V capacitors to minimize feedback sounds of graphics cards
• Top protection for components against over-currents, over- and under-voltages, short circuits, overheating, overloads and voltage surges on input side
• Long service life up to 180,000 hours
• Full performance during 24/7 operation

Maximum Compatibility and Convenience

• Supports the latest Intel® and AMD™ processors
• Compatible with ATX12V 2.4 and EPS12V 2.92 standards
• Professional modular cable management system with removable cable bundles simplifies component installation, reduces annoying clutter, increases airflow and allows for improved cooling
• Cable management with 2x P8 connector for better voltage stability for the CPU
• System supports up to 32 connectors for massive system builds
• Connectors are compatible with older components as well as those still on the drawing board
• Sleeved cable lengths up to 120cm are perfect for large PC cases and allow for improved cooling in any size case
• Individual P4 and P8 plugs support all common mainboard types
• Five PCIe connectors for powerful multi-GPU configurations
• Clearly labeled plugs and clever accessories promote simple installation

Outstanding Service and Support

• 5-year manufacturer's warranty
• Quick support is available via our international hotline.