The NMB TECHNOLOGIES CORPORATION part 04015SS-24N-AT-00 is a compact and efficient DC Axial Fan, perfect for applications requiring reliable cooling in a small space. This 40x40x15mm fan operates at 24VDC, delivering a steady airflow of 7.4CFM to keep your electronics running smoothly. The fan is designed for easy installation with its rib mount feature and comes with a sleeve bearing for enhanced longevity. Equipped with 3-lead wires and a tachometer for monitoring fan speed, this fan is a versatile and reliable cooling solution for your electronics needs.