Fractal Design Dynamic X2 GP-12 PWM. Type: Fan, Fan diameter: 12 cm, Rotational speed (min): 500 RPM, Rotational speed (max): 2000 RPM, Noise level (low speed): 10 dB, Noise level (high speed): 32.2 dB, Maximum airflow: 87.6 cfm, Minimum air pressure: 0.51 mmH2O, Maximum air pressure: 2.3 mmH2O. Voltage: 12 V. Width: 120 mm, Depth: 25 mm, Height: 120 mm. Product colour: Black