Support - Compliant with latest Intel standards ATX 12V, V2.0 Efficiency > 70% MTBF > 50000hrs Cooling System - 120mm sleeve bearing fan Protection - Over Voltage Protection (OVP), Under Voltage, Over Power Protection (OPP), Over Temperature Protection (OTP) & Short Circuit Protection (SCP) PSU Specifications AC INPUT: 230 VAC 5A 50-60 Hz DC Output Max +3.3V +5V +12V1 -12V +5VSB 26A 27A 22A 0.5A 2A 500W Connectors 20+4 Pin Main Connectors: 1 4-Pin 12V Connectors: 1 SATA Connectors: 3 4-Pin Molex Connectors: 2 Floppy Drive Connectors: 1 Detailed Specifications Dimensions: 150mm x 140mm x 83mm (W x H x D) Input Voltage: 230 VAC Input Current: 5A Input Frequency Range: 50-60 Hz PFC: Passive PFC Power Good Signal: 100-500 ms Hold Up Time: >17ms Efficiency: >70% MTBF: 50, 000 Hours Protection: OVP / OTP / OCP/ OLP/ OPP/ SCP Power: 500W Operation Temperature: 0-40&194;&176;C (Nominal Input Voltage) Safety: CE / FCC / UL / TUV Cooling: 12cm Fan Noise: < 23 d BA