Gamdias Kratos E1-500 500 Watt RGB Power Supply with 80 PLUS® certified up to 80% Efficiency. Deliver upto 80% efficiency at 230V. Built-in RGB Lighting Effects. Customizable RGB lighting via MB manufacture sync software. High performance and stable power supply. Automatic fan speed optimizing according to temperature. Support Intel C6/C7 power state. Circuit Shield: OVP, UVP, OPP, SCP.