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Introducing the EVGA SuperNOVA 650 GS and 550 GS power supplies. These power supplies take the award-winning features of the new EVGA "GS" lineup and provide them at an extremely affordable price. The EVGA SuperNOVA 650 and 550 GS power supplies offer superior performance, Gold-rated efficiency and are completely silent when under low loads*. Backed by a 5 year warranty and high quality Japanese capacitors, these power supplies are the right choice for excellent efficiency, low noise levels and incredible value. *With ECO mode Features 80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads Highest quality Japanese brand capacitors ensure long-term reliability Fully Modular to reduce clutter and improve airflow NVIDIA SLI & AMD Crossfire Ready 5 Year Warranty and unparalleled EVGA Customer Support Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection) Specs Heavy-duty protections, including: OVP (Over Voltage Protection) UVP (Under Voltage Protection) OPP (Over Power Protection) SCP (Short Circuit Protection)