Exceptional 3 year warranty and unparalleled evga customer support 80 plus bronze certified with up to 85 efficiency under typical loads high amperage single rail design for maximum power and efficiency quiet and intelligent auto fan for near silent operation with price and performance in mind the evga 600b is the best value power supply for your next build on a budget with 80 plus bronze standard over 80 efficiency under typical loads the evga 600b is a great choice combining 600w of c