Corsair Professional Series power supplies set a new standard by which all premium PSUs must be judged. Designed and engineered using cutting-edge technology, each Corsair Professional Series power supply is built to the highest quality standards, and delivers the features and performance that technology enthusiasts demand. The Corsair Professional Series HX850W PSU utilizes advanced DC-to-DC circuitry and meets 80 PLUS SILVER certification standards for up to 90% energy-efficiency, reducing wasted energy and lowering the amount of excess heat generated. Corsair Professional Series power supplies are built using industrial grade electrical components, ensuring the stable, clean and reliable voltages that are essential for high-end gaming PCs and workstations. Corsair Professional Series power supplies boast an innovative cabling configuration that uses low-profile, flat modular cables that reduce air friction to help maximize airflow through the computer chassis. The modular design also simplifies installation as it allows unprecedented flexibility in using only those cables which are needed.

Guaranteed to sustain its full rated wattage at an ambient temperature of 50°C

Up to 90% energy-efficiency under real-world load conditions

Single +12V rail design providing up to 62A

Multi-GPU ready

105°C solid state capacitors

Active Power Factor Correction (PFC) with PF value of 0.99

Supports ATX12V 2.3 and EPS12V 2.91 standards. Backwards compatible with ATX12V 2.01

Auto switching circuitry for universal AC input from 90-264V