be quiet! Power Zone 2 850W 80 Plus

The be quiet! Power Zone 2 850W is a premium ATX power supply engineered for enthusiasts and professionals who demand uncompromising performance, efficiency, and near-silent operation. As part of the renowned Power Zone series, this 850W unit delivers clean, stable power to even the most power-hungry components, making it an ideal choice for high-end gaming rigs, content creation workstations, and multi-GPU setups.

Key Features

• 80 PLUS Gold Certified: Achieves up to 93% efficiency under typical loads, reducing energy waste and heat generation.
• Fully Modular Design: Install only the cables you need for a cleaner build and improved airflow.
• Silent 135mm Fan: Features a be quiet! Silent Wings fan with fluid-dynamic bearing for whisper-quiet operation even under heavy load.
• Single +12V Rail: Delivers up to 70A on a single rail, ensuring stable power delivery to CPUs and GPUs.
• Comprehensive Protections: OCP, OVP, UVP, SCP, OTP, and OPP safeguard your valuable components.
• High-Quality Components: Built with Japanese capacitors and a robust LLC resonant converter for reliable, long-lasting performance.

Performance & Efficiency

The Power Zone 2 850W is designed to deliver exceptional efficiency across a wide range of loads. Its 80 PLUS Gold certification means it operates at up to 93% efficiency, which not only lowers your electricity bill but also reduces heat output, allowing the fan to spin slower and quieter. The single +12V rail provides consistent power to even the most demanding CPUs and GPUs, while the DC-to-DC converters ensure stable voltages for sensitive components.

Connectivity & Cable Management

With a fully modular cable set, you can connect only the cables you need, keeping your case tidy and airflow unobstructed. The included cables cover all modern requirements: 1x 24-pin ATX, 2x 8-pin EPS12V (4+4) for CPU power, 6x 6+2-pin PCIe for graphics cards, 10x SATA for drives, 4x Molex, and a floppy adapter for legacy devices. The cables are flat and flexible, making routing easy even in compact cases.

Who Is It For?

This PSU is perfect for PC builders who are assembling a high-performance gaming PC with a flagship GPU, a content creation workstation with multiple storage drives, or a system that requires reliable power for overclocking. Its 850W capacity provides ample headroom for future upgrades, and its silent operation makes it a favorite among users who prioritize a quiet computing environment.

Build Quality & Reliability

be quiet! is known for its exceptional build quality, and the Power Zone 2 is no exception. It uses high-quality Japanese capacitors rated for 105°C, ensuring longevity and stability. The 135mm Silent Wings fan is engineered for minimal noise and maximum lifespan, with a fluid-dynamic bearing that reduces friction and wear. The PSU also features a smart fan controller that adjusts speed based on load and temperature, keeping noise levels low even during intense gaming sessions.

In summary, the be quiet! Power Zone 2 850W is a top-tier power supply that combines efficiency, silence, and reliability. Whether you're building a new system or upgrading an existing one, this PSU offers the performance and peace of mind you need.