: Delta DELTAModel: QFR1212GHE-9D89Part Number P / N:74Y5220Connector: 4-wire server double connectorSize: 120 * 120 * 38mmVoltage: DC 12VCurrent: 2.70ASpeed: 6000 RPMAir volume: 210.38CFMAir pressure: 21.60 mmH2ONoise: 64dB-ABearing: High precision double ball bearingFan frame: injection molding, PBT + 30% glass fiber + VO level flame retardantFan: injection molding, PBT + 30% glass fiber + VO level flame retardant.Fan rotation: from the fan direction as a counterclockwiseOperating temperature: -10 degrees Celsius to +70 degrees CelsiusStorage temperature: -40 degrees Celsius to +70 degrees CelsiusPower range: rated power plus or minus 15%Insulation resistance: greater than 500 megohmsWithstanding voltage: sink leakage current 0.5mA 500V / 1 minuteWorking life: the ambient temperature of 25 degrees when 80,000 hoursScope: Workstation cooling / server CPU cooling