Fractal Design Prisma SL-12. Type: Fan, Fan diameter: 12 cm, Rotational speed (max): 1200 RPM, Noise level (high speed): 19.5 dB, Maximum airflow: 50.63 cfm, Airflow: 86.02 m³/h, Maximum air pressure: 1.27 mmH2O. Voltage: 12 V. Width: 120 mm, Depth: 25 mm, Height: 120 mm. Product colour: Black, White