The reliable, efficient & affordable line of Elite power supplies is ideal for mainstream & basic computing systems. Built with quality components & dual +12V outputs, the Elite series is fit to handle demands of high power requirements. The eco-friendly design allows the Elite series to reach more than 70% efficiency at typical loading & meet Energy Star & Blue Angel requirements. Compliance with the newest Intel standard ATX 12V V2.3 More than 70% efficiency at typical load operation High performance components design for better reliability Green power design to meet Energy Star & Blue Angel requirements Multiple protection design (OVP/OCP/OPP/SCP) Support dual +12V1 & +12V2 outputs for higher power usage One 4+4 pin +12V CPU connector for high-end CPU EMI & Noise filter built in design 2 Year warranty Model RS500-PSARJ3-UK Type Intel ATX12V V2.31 Dimension (W / H / D) 150 x 86 x 140 mm Input Frequency Range 47 ~ 63 Hz PFC Regular Power Good Signal 100 ~ 500 ms Hold Up Time >17 ms Efficiency >70% Typically MTBF >100, 000 hrs Protection OVP / OCP / OPP / SCP Output Capacity 500W Operation Temperature 0~40?C (Nominal Input Voltage) Fan 120mm Certifications CE / GOST / C-tick Connector M/B 20+4 Pin x 1 CPU 4+4 Pin x 1 4 Pin Peripheral x 3 SATA x 4 4 Pin Floppy x 1 6 Pin PCI-e Connector x 1