FSP350-51ACC Features: Certified CB 62368-1 Meet 230V EU 80 Plus Silent Fan Operation Low Ripple & Noise Over Current Protection Over Temperature Protection Over Voltage Protection Specifications: Dimension: 140 x 150 x 86 (mm) Efficiency: 230V EU 80 Plus Working temperature: 0°C to 50°C Hold-up time: 230V / 50Hz: ≥ 16ms@ typical load Storage temperature: -20°C to + 80°C Operating altitude 2,000 meters above sea level Working humidity: 90% RH non-condensing MTBF: 100,000 hours of continuous operation at 25°C, Max. output load Storage humidity: 90% RH non-condensing