Corsair Enthusiast Series TX 850 Watt ATX/EPS Modular 80 PLUS Bronze (TX850M) 80PLUS Bronze certified, delivering up to 85% energy efficiency at real world load conditions. A dedicated single +12V rail offers maximum compatibility with the latest components. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed Over-voltage and over-current protection, under-voltage protection, Universal AC input from 90~264V. No more hassle of flipping that tiny red switch to select the voltage input! A five year warranty and lifetime access to Corsair's legendary technical support and customer service. The latest ATX12V v2.31 and EPS 2.92 standards and it is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems. Short circuit protection provide maximum safety to your critical system components.