Fractal Design Tesla R2 650W. Nominal power: 650 W, AC input voltage: 90 - 264 V, AC input frequency: 47 - 63 Hz. Fan diameter: 135 mm, Cooling type: active. Motherboard power connector: 20+4 pin ATX. Width: 150 mm, Depth: 165 mm, Height: 86 mm. Mean time between failures (MTBF): 100000 h