be quiet! Pure Power 12 M 850W ATX 3.0 (BN344)Exceptional quiet, superior featuresbe quiet! Pure Power 12 M 850W is ATX 3.1 compliant and PCIe 5.1 compatible and offers peerless dependability with best-in-class features. Pure Power 12 M 850W offers the best combination of features with outstanding compatibility.80 PLUS® Gold efficiency (up to 93.2%) ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6 2 pin connectorsExceptionally silent 120mm be quiet! fanAdvanced stability and voltage regulation thanks to LLC technology2 strong 12V-railsModular cables for maximum build flexibilityOne PCIe 5.1 12V-2×6 600W and 4 PCIe 6 2 connectors for overclocked high-end GPUs  10-year manufacturer’s warranty80 PLUS® GOLD CERTIFIED | Very high operating efficiencybe quiet! Pure Power 12 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 93.2%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 850W is always the correct choice for quiet systems and gaming PCs!FUTURE-PROOF YOUR SYSTEM | Fulfills all ATX 3.0 specificationsbe quiet! Pure Power 12 M 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2×6 connector for next-generation PCIe 5.1 graphics cards, and PCIe 6 2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.THE NEW STANDARD OF POWER | For massive transient loadsPure Power 12 M offers 850W of continuous power with 2 independent 12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 M 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.UNPRECEDENTED SILENT OPERATION | Achieved with a silence-optimized be quiet! fanThe exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality.HIGH-CLASS TECHNOLOGIES | Rock-solid stabilityWith its LLC topology Pure Power 12 M 850W provides a best-in-class voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.MODULAR CABLES | Utmost convenience and compatibilityThanks to their modularity, all unnecessary cables in the system are left out. Pure Power 12 M 850W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case.For more information, visit the be quiet! website.