The latest ATX12V v2.31 and EPS 2.92 standards and it is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems. An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions. Active Power Factor Correction (PFC) with PF value of 0.99. Universal AC input from 90~264V. No more hassle of flipping that tiny red switch to select the voltage input! A dedicated single 12V rail offers maximum compatibility with the latest components. Over-voltage and over-current protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components. High-quality Japanese capacitors providing uncompromising performance and reliability. The completely modular cable system allows you to use only the cables you need. Power supply upgrade and replacement is easy, as the cables only need to be disconnected at the power supply. Low-profile, flat cable design reduces air friction and helps maximize airflow through your computers chassis. A Seven year warranty and lifetime access to Corsairs legendary technical support and customer service.