be quiet! Power Zone 2 850W Power Supply Unit

The be quiet! Power Zone 2 850W Power Supply Unit delivers high-efficiency power delivery for gaming systems, overclocking rigs, and quiet HTPCs. With 80 PLUS Platinum certification achieving up to 94.1% efficiency, this PSU reduces power consumption while maintaining cooler, quieter operation.

Efficiency and Cooling Performance

Certified with both 80 PLUS Platinum and Cybernetics Platinum ratings, the Power Zone 2 operates at up to 94.1% efficiency. The semi-passive zero-RPM cooling system keeps the Pure Wings 3 140mm fan completely off under low loads, ensuring silent operation. A 2-5 minute post-ventilation cool-down period prevents frequent fan cycling. At full load, noise levels remain at just 24.9 dB(A), earning a Cybenetics A+ noise rating.

Next-Generation Compatibility

The 90° angled 12V-2x6 connector provides PCIe 5.1 and ATX 3.1 compatibility, supporting next-generation graphics cards with up to 600W on the 12VHPWR rail. The single massive 12V rail delivers 849.6W, handling power excursions up to double the rated capacity for reliable operation during demanding workloads.

Advanced Technology and Design

LLC technology ensures superior voltage regulation and stability across all load conditions. The distinctive mesh front panel design includes cable designations printed directly on the PSU case for easy installation. The rifle bearing Pure Wings 3 fan with 4-pole motor technology operates up to 2100 RPM, providing efficient cooling when needed.

Technical Specifications

Power Output: 850W continuous, 920W peak
Efficiency: 80 PLUS Platinum, Cybenetics Platinum
Form Factor: ATX 3.1, EPS 12V 2.92
Operating Temperature: Up to 40°C
Average Lifespan: >100,000 hours at 25°C
Standby Consumption: <0.18W
Hold-up Time: 21.1ms at 100% load, 29.0ms at 80% load
Dimensions: 160 x 150 x 86mm (L x W x H)

Comprehensive Connectivity

The fully modular cable system includes: 1x ATX motherboard (20+4-pin), 1x P4+4 CPU, 1x P8 CPU, 1x P4 CPU, 1x 12VHPWR cable, 3x PCIe 6+2-pin GPU connectors, 7x SATA, and 1x PATA. Cable lengths up to 100cm ensure compatibility with various case sizes, with the motherboard cable measuring 60cm.

Long-Term Reliability

Backed by a 10-year manufacturer's warranty, the Power Zone 2 provides peace of mind for long-term system builds. The >0.98 power factor at 100% load and Modern Standby support ensure efficient operation across all usage scenarios.

• Wattage: 850W
• Size/Version: ATX 3.1
• Modular: Fully
• SATA Connections: 7
• Certification: Platinum
• Colour: Black