The Delta Thermal / EMI / Solenoids part EFB0412HHD is a powerful and reliable DC Fan designed for efficient cooling in various electronic applications. With its compact size of 40 x 40 x 20mm, this axial fan features a durable ball bearing system that ensures smooth and long-lasting operation. It operates within a voltage range of 7V to 13.8V and provides a steady airflow of 9.43 cubic feet per minute (CFM). The fan's noise level is impressively low, measuring at 30.5dB, making it suitable for use in noise-sensitive environments. Whether you need to cool down your computer, equipment, or any other electronics, the EFB0412HHD is an ideal choice for optimal performance and temperature control.