be quiet! STRAIGHT POWER 11 850W - Fully Modular - 80+ Platinum Certified - 5 Years Warranty - Number 1 PSU in Germany

Overview

The be quiet! STRAIGHT POWER 11 850W is a fully modular, high-performance power supply unit (PSU) designed for premium efficiency, silent operation, and outstanding reliability. With its 80+ Platinum certification, it delivers up to 94% efficiency, reducing energy waste and heat output. The fully modular cable design allows for clean and organized builds, while the Silent Wings 3 135mm fan ensures whisper-quiet cooling. Built with top-quality components, including high-quality Japanese capacitors, this PSU is engineered for stability and durability. Recognized as the number one PSU in Germany, it comes with a 5-year warranty, making it ideal for high-end gaming PCs, workstations, and professional builds requiring efficient and stable power delivery.

How to Install the be quiet! STRAIGHT POWER 11 850W

1. Turn Off and Unplug Your PC – Ensure your safety before installation.
2. Remove the PC Case Side Panel – Access the PSU compartment.
3. Position the PSU – Align it in the case with the fan facing downward for optimal cooling.
4. Secure the PSU – Use the included screws to fasten the unit.
5. Connect the Required Modular Cables – Attach only the necessary cables for your components.
6. Plug in Power to Motherboard, CPU, GPU, and Storage – Ensure each component receives proper power.
7. Manage Cables for Airflow – Organize and secure cables to improve cooling and aesthetics.
8. Close the Case and Power On – Boot the system and check for proper functionality.

Service, License, and Plans

The be quiet! STRAIGHT POWER 11 850W is a hardware product and does not require a software license or subscription plan. It includes a 5-year manufacturer’s warranty, ensuring coverage against defects and malfunctions.

Key Differences in the STRAIGHT POWER 11 Series

The STRAIGHT POWER 11 series is available in wattages ranging from 450W to 1000W, catering to various power needs. The 850W model is designed for high-end gaming PCs, content creation workstations, and multi-GPU configurations, offering silent, efficient, and stable power output.

10 Key Features of the be quiet! STRAIGHT POWER 11 850W

1. 80+ Platinum Efficiency – Reaches up to 94% efficiency, reducing power waste.
2. Fully Modular Cable Design – Enables better cable management and improved airflow.
3. Silent Wings 3 135mm Fan – Provides ultra-quiet cooling with optimized airflow.
4. Stable Power Delivery – Advanced LLC + SR + DC/DC technology for consistent voltage regulation.
5. Premium Japanese Capacitors – Ensures long lifespan and reliable performance under heavy loads.
6. Multi-GPU Compatibility – Features multiple PCIe connectors for SLI and CrossFire setups.
7. Comprehensive Safety Protections – Includes OCP, OVP, UVP, SCP, OTP, and OPP for stability.
8. Optimized for Modern Hardware – Compatible with Intel and AMD processors and GPUs.
9. Compact ATX Form Factor – Fits most PC cases while maintaining efficient cooling.
10. 5-Year Warranty – Provides long-term reliability and peace of mind.

Competitor Products

1. Corsair HX850 – A fully modular 80+ Platinum PSU known for quiet operation and high efficiency.
2. Seasonic Prime PX-850 – Offers exceptional power stability, modular cables, and silent cooling.

The be quiet! STRAIGHT POWER 11 850W is an excellent choice for users who demand ultra-silent operation, energy efficiency, and top-tier power stability. As the number one PSU in Germany, it is trusted by gamers, professionals, and PC builders for high-performance computing.