CFM-4020V-270-255-20 is a 24 Vdc DC axial fan designed for efficient thermal management in electronic systems. It features a 40 x 40 x 20 mm frame with an omniCOOL bearing system, delivering 8.9 CFM airflow at a rated speed of 7000 RPM with a noise level of 25.5 dBA. The fan operates over an input voltage range of 8-27.6 Vdc with a maximum input current of 39 mA and power consumption of 0.94 W. It includes a tachometer signal output for speed monitoring, auto restart protection, and offers a life expectancy of 70,000 hours at 40°C. This fan is ideal for cooling applications in telecommunications, networking equipment, and industrial electronics where reliable, low-noise operation is required.