Incorporating various high-quality components, the smart series - models are Rated from 500W to 700W - saves energy through its high efficiency of up to 86% and accommodates any mainstream build with the most demanding requirements. An embedded intelligent cooling fan delivers excellent Airflow at an exceptionally low noise level. Additionally, the single +12V rail design enables non-stop usage with stable and reliable performance. Smart Series adopt 120mm cooling fan delivers excellent Airflow at an exceptionally low noise level. Smart Series saves energy through its high energy efficiency of up to 86% and is 80 PLUS standard Certified. High quality components enable non-stop usage with stable and reliable performance, no more capacitor explosion and leakage. Single +12V output.p/N: ps-spd-0500npcw-w shortmodel: sp-500ah2nkwtype: Intel ATX 12V 2. 3max.Output capacity: 500wcolor: blackdimension (H x W x D): 86mm x 150mm x 140mm pfc (power factorcorrection: active pfc powergood signal: 100-500 msechold up time: 16msec (minimum) within 60% load input current: 8a max input frequency range: 50 Hz - 60 hz inputvoltage: 100Vac - 240vac operating temperature: 5℃ to +40℃operating humidity: 20% to 85%, non-condensingoperating temperature: -40 ℃ to +55 ℃ operating humidity: 10% to 95%, non-condensing cooling system: 120mm fan: 1800 R. P. M. 10%efficiency: 82-86% efficiency @ 20-100%load mtbf: 100, 000 hrs minimum safety Approval: CE/CB/TUV/ UL/fcc pci-e connector: PCI-E 6+2pin x 2.