Corsair RM850i 850 Watt 20+4 Pin ATX Power Supply - Black by Corsair

Premium components for great performance with very low noise

Corsair RMi series power supplies are 80 PLUS Gold certified and give you extremely tight voltage regulation, virtually silent operation, and a fully modular cable set. With all Japanese 105°C capacitors, they’re a great choice for high performance PCs where reliability is essential. Corsair Link Digital makes it easy to monitor power supply performance, toggle single rail or multi rail mode, and control fan speed directly from your desktop.

- Corsair Link Integration for monitoring performance and adjustment of fan speed and multi-rail/single rail mode.
- 80 PLUS® Gold efficiency, delivering 90% energy efficiency at real world load conditions.
- ZeroRPM mode for fanless operation at low loads and outstanding noise reduction.
- 135mm thermally controlled fluid dynamic bearing fan spins up as needed.
- Fully modular cables for easy installation, less clutter, and helps maximize airflow through your computer’s chassis.
- Engineered to meet maximum power output at a server-grade 50°C temperature rating.
- Fan self-test switch to determine fan functionality even before installation.
- Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection provide maximum safety to your critical system components.