Based on the G2 series power supplies from EVGA, this PSU features 80 PLUS Gold rated efficiency, & clean, continuous power to every component. This provides enhanced efficiency for longer operation, less power consumption, reduced energy costs & minimal heat dissipation. The ECO thermal control fan system offers fan modes to provide zero fan noise during low load operations. Backed by a Japanese capacitor design, the EVGA Super NOVA 850 G2 is not only the right choice for your system today, it is also the best choice for your system tomorrow.