Core 140mm fan PWM 2000rpm (140x140x25mm) 24853 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 2000 rpm via the 4-pin PWM connector. At maximum speed, it allows an airflow of 103.03 CFM combined with a high static pressure of 2.81 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 hydraulic Bearing Rated Voltage DC 12V Operating Voltage DC 7-14V Start-up Voltage 7V Rated Current 0.45 (Max: 0.5) A Rated Power 5.4 (Max: 6.0) W Control Range 0 - 2000 rpm ±10% Max. Air Flow 103.03 CFM Max. Static Pressure 2.81 mm/H2O Noise level 38.3 (Max: 40.0) dBA Life Expectance 50000 h at 25 degrees celcius Connection 4-Pin PWM Speed Control Mode via PWM Operating Temperature -10~+55 degrees celcius Other Features Tachometer Output, Auto Start, Soft Start, Waterproof Level IP22