Dynatron A35. Type: Air cooler, Fan diameter: 8 cm, Number of speeds: 3, Rotational speed (min): 800 RPM, Rotational speed (max): 3800 RPM, Noise level (low speed): 16 dB, Noise level (high speed): 48.8 dB, Maximum airflow: 68.4 cfm, Minimum air pressure: 0.4 mmH2O, Maximum air pressure: 10.1 mmH2O, Bearing type: Ball bearing. Voltage: 12 V. Width: 82 mm, Depth: 120 mm, Height: 110 mm