Inter-Tech K-2. Type: Cooler, Fan diameter: 7.5 cm, Rotational speed (min): 1000 RPM, Rotational speed (max): 4000 RPM, Noise level (low speed): 21 dB, Noise level (high speed): 44 dB, Maximum airflow: 11.9 cfm, Minimum air pressure: 0.087 mmH2O, Maximum air pressure: 0.929 mmH2O. Voltage: 12 V. Width: 82.6 mm, Depth: 81 mm, Height: 27.8 mm. Product colour: Black, Copper, Silver