PC Power Supply EVGA 850 BQ:Computer Source brand EVGA offers users compiling a computer with high-quality bronze certified efficiency of 85% for small money.EVGA offers users compiling a computer with high-quality bronze certified efficiency of 85% at an affordable price. High power efficiency means that only a tiny fraction of the energy supplied will be lost due to thermal radiation and other physical constraints, and the power supply will efficiently support all necessary components of the computer. Because of a relatively large fan that takes care of the thermal conditions of the entire electricity distribution in a computer cabinet, the entire operation of the source will not be heard at all. All available protection is given for maximum safety (OVP, UVP, OCP, OPP, SCP and OTP) as a standard.Key featuresLow loss in energy transformation from the network into individual componentslarge 140mm fan with ultra-quiet operation and excellent coolinga sufficient amount of power cables for all components of your PC80 PLUS Bronze certificationsemi-modular cabling