850W "Corsair" TX-850 ATX Power Supply, 5 Year Warranty. 80 PLUS 'Green' Certified. Features: -Supports ATX12V v2.2 standard and older ATX12V 2.01 spec -Ultra-quiet 120mm (140mm on TX750W and TX850W) double ball-bearing fan delivers excellent airflow -80%+ energy efficiency at 20%, 50% and 100% load condition for less heat generation and lower energy bill -99% Active Power Factor Correction provides clean and reliable power to your system -Universal AC input 90264V 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. -High quality Japanese capacitors provide uncompromised performance and reliability. -Extra long cables support full tower size chassis. -Dimension: 5.9"(W) x 3.4"(H) X 6.3"(L); -MTBF: 100,000 Hours -NVIDIA SLI-ready certified.