EVGA SuperNOVA 850 G2 Power Supply. Unbeatable 10 Year Warranty and unparalleled EVGA Customer Support 80 PLUS Gold certified, with up to 90% efficiency under typical loads Highest quality Japanese brand capacitors ensure long-term reliability Fully Modular to reduce clutter and improve airflow NVIDIA SLI Ready Double Ball Bearing fan for exceptional reliability and quiet operation Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection)