Phanteks PH-F120S_BK 120mm CPU Cooler Case and Thermal Premium Fan - White Frame/Black Blades The nine blades are positioned in a way that it provides a powerfully controlled airflow. The MVB produces a downdraft vortex allowing air passage through the surface to produce a significantly better performance while keeping the noise level down. Phanteks UFB bearings are composed by MOSS and SSC system. MOSS has an effective fan hub-blade ratio to achieve a dynamic balance, thus floating the axis for minimal air noise. SSC increases the bearing life span to ensure that the fan axis is consistently operating without mechanical noise. Phanteks unique fan circuit design provides a Fan Polarity Auto-Restart feature. The sensor inside of the fan will constantly send a series of rectangular signals to PC M/B indicating that the fan is working correctly. The unique restart feature provides optimal support and protection. Model: PH-F120S_BK Brand: Phanteks Fan Dimension: 120 x 120 x 25 mm Type: CPU cooler, Case Fan. Color : Frame : White. Blades : Black Bearing Type: UFB bearing (Updraft Floating Balance bearing) Blade Geometry: 9 blades design with M.V.B (Maelstrm Vortex Booster) Design Speed (R.P.M.): 1300  10% rpm Max Airflow: 50.72 CFM Acoustical Noise: 23.5 dB (A) Static Pressure: 1 mm H20 Input Current: 0.18 A Rate Voltage: DC 12V Input Power: 2.16W MTBF &gt; 150,000 h. Speed sensor: 3 pins Cable Length: 400 mm 1x 120mm Premium fan 1x 3:4-Pin Adaptor 4x Fan Screws 4 x Anti-Vibration Compensators 8x Anti-Vibration Rubber Pad