Power Supply be quiet! DARK POWER PRO 11 BN253 Semi-modular 80 Plus Platinum 850W 12V:840W

One of the highest efficiency certificates available

Dark Power Pro 11 850W is certified with 80 PLUS Platinum and an energy efficiency rating of up to 94%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.

Equipped with the best fan technology be quiet! offers

The decoupled be quiet! Silent Wings 3 135mm fan provides virtually inaudible operation. This is thanks to its unique, airflow-optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor for less vibration, super-long life and minimal power consumption.

Higher cooling performance

The fan inlet of the Dark Power Pro 11 850W is funnel shaped. This causes an increased throughput of air, which results in higher cooling performance.

Pushing the performance of your PSU to the max

Dark Power Pro 11 850W is particularly suitable for overclocking, thanks to its strong and stable 12V-rails. The overclocking key empowers you with full control for overclocking by manual switching between the default four 12V-rail mode and the alternative massive single-rail operation.

Build powerful multi-GPU systems with confidence

Dark Power Pro 11 offers 850W of continuous power with four independent 12V-rails for excellent signal stability and nine PCI express connectors for multi-GPU systems. Up to four case fans can be connected to, and regulated by the PSU.

Semi-modular cables

The maximum utility afforded by extra-long sleeved cables of up to 120cm and modular cable management simplifies component installation and reduces annoying clutter. This succeeds in increasing the airflow and improving the cooling in even the largest PC cases.

Rock-steady signal stability and efficiency

Experience the most technologically advanced power supply be quiet! has ever built! Using an advanced full bridge, LLC and Synchronous Rectifier (SR) technology it provides unmatched signal stability and unbeatable power efficiency. It is also equipped with DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions. This ensures reliable operation for the next generation of processors and graphics cards.

A testament to high quality

Only the best components are used in Dark Power Pro 11 850W. That is why we have built exclusively high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C which ensures stability, reliability and a long operating life.