Corsair CX Series 500 Watt 80 Plus Bronze Certified Non-Modular Power Supply (CP-9020047-US) Supports the latest ATX12V v2.2 standard and is backwards compatible with ATX12V 2.01 systems Rated up to 500W of continuous power output at 40C Extra long fully sleeved cables to support full tower chassis and assist with flexible cable routing Ultra-quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying the RPM in response to temperature High efficiency topology to ensure energy savings 99% Active Power Factor Correction provides clean and reliable power to your system Universal AC input 90~264V automatically scans and detects the correct voltage Dedicated single +12V rail offers maximum compatibility with latest components Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components An ultra-quiet 120mm fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature. 80Plus Bronze certified to deliver 80% efficiency or higher at normal load conditions 0.99 Active Power Factor Correction provides clean and reliable power. 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-power protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components A three year warranty and lifetime access to Corsairs legendary technical support and customer service