Elevate Your System: Be Quiet! Straight Power 11 850W Fully Modular 80+ Gold PSU Unmatched Silence, Unparalleled Efficiency The Be Quiet Straight Power 11 850W is a quiet and powerful PSU. It has amazing features that make it efficient and reliable. Let’s see what makes this PSU stand out from the rest. Virtually Inaudible Operation with SilentWings® 3 Fan The PSU has a Silent Wings® 3 fan. It is a 135mm fan that is very quiet. It has a special fan blade, a smooth bearing, and a 6-pole motor. It makes no noise and has great airflow. It uses very little power. Funnel-Shaped Fan Opening for Enhanced Cooling The funnel-shaped fan inlet of the Straight Power 11 850W increases air throughput, leading to higher cooling performance. This innovative design ensures optimal cooling without compromising on silence. Wire-Free Design Inside The PSU An absolute innovation, the Straight Power 11 850W is wire-free on the DC side inside the PSU body. This groundbreaking design not only improves cooling airflow but also reduces signal disturbance, pushing the lifetimes of components to the maximum. Fully Modular Cable Management for Utmost Convenience The PSU has fully modular cables. It only uses the cables it needs, so it looks neat. It is easy to install and has good airflow. It is quiet and cool inside the case. 80PLUS® GOLD Certified for Impressive Efficiency The Straight Power 11 850W is 80PLUS® Gold certified. It is up to 93.4% efficient. It uses less power, so it is cooler and quieter. It is very good for high-performance systems. High-Class Technologies for Future Compatibility The PSU has LLC and SR, which make it stable and efficient. It also has DC-to-DC conversion, which keeps the voltage steady even when the load changes. It works well with the latest processors and graphics cards. Japanese 105° Capacitors: A Mark of Quality Only the best components find their place in the Straight Power 11 850W. High-quality Japanese capacitors, rated to 105°C, deliver stability, reliability, and a long operating life. Specifications: Form Factor: ATX Modular: Fully Modular Series: Be Quiet! Straight Power 11 Compatibility: ATX 12V 2.4 & EPS 12V 2.92 Wattage: 850 W Connectors: 1 x ATX-Motherboard (20+4-pin) 1 x P8 (CPU) 1 x P4+4 (CPU) 4 x PCI-E 6+2-pin (GPU) 4 x PATA 4-pin 11 x SATA 15-pin (HDD, Drives) 1 x FDD (Floppy) 4 x Mainboard connector (PATA 4-pin) Rail Design: Quad 12V AC Input: AC 100-240 V PFC: Active PFC Fan Type: SilentWings 3 fan (fluid-dynamic bearing) Fan Bearing: Fluid / Hydraulic Bearing Noise: dB(A) at 20% load: 9.71 dB(A) at 50% load: 10.61 dB(A) at 100% load: 24.98 80 Certification: 80 Gold Efficiency: Up to 93.4% MTBF: 100,000 hours Protection: Over Current Overvoltage Under voltage Short circuit Over Temperature Overpower Weight/Dimensions: 1.8 kg, 170 x 150 x 86 mm Package Weight: 3.6200 kg Warranty: 5 Years To sum up, the Be Quiet! Straight Power 11 850W is a great PSU. It is quiet, efficient, and advanced. It is perfect for systems that need the best quality.