Thermaltake Riing Plus. Type: Fan, Fan diameter: 12 cm, Rotational speed (min): 500 RPM, Rotational speed (max): 1500 RPM, Noise level (high speed): 24.7 dB, Maximum airflow: 48.34 cfm, Maximum air pressure: 1.54 mmH2O, Bearing type: Hydraulic. Voltage: 12.5 V. Product colour: Multicolour