Core 140mm fan PWM 2500rpm (140x140x25mm) 24846 Features: Connections The fan is controlled via a 4-pin PWM connector. The cable is 40cm long. This allows the fan to be connected directly to the motherboard or a dedicated controller without the use of additional adapter cables or extensions. Control range The fan can be controlled from 0 to 2500 rpm via the 4-pin PWM connector. At maximum speed, it allows an airflow of 115.56 CFM combined with a high static pressure of 3.96 mm/H2O. This makes the fan perfect for mounting on radiators of a water cooling system or for ventilating a case. Specifications: Dimension (L x W x H) 140 x 140 x 25mm Material synthetic material (PBT UL94V-0) Bearing Type Two Ball Bearing Rated Voltage DC 12V Operating Voltage DC 7-14V Start-up Voltage 7V Rated Current 0.4 (Max: 0.5) A Rated Power 4.8 (Max: 6.00) W Rated Speed 0 - 2500 rpm ±10% Max. Air Flow 115.56 CFM Max. Static Pressure 3.96 mm/H2O Noise level 43.3 (Max: 45.0) dBA Life Expectance 70000 h at 40 degrees celcius Connection 4-Pin PWM Speed Control Mode via PWM Operating Temperature -10~+70 degrees celcius Other Features Tachometer Output, Auto Start, Soft Start, Waterproof Level IP22