The Supermicro FAN-0117L4 is a high-performance 40x40x28mm axial cooling fan engineered specifically for 1U rackmount server chassis. Designed to meet the rigorous thermal demands of enterprise data centers, this fan provides the high static pressure necessary to move air through densely packed components, including high-TDP processors, memory banks, and expansion cards. It serves as a critical cooling component for several Supermicro chassis families, including the SC113, SC512, SC813, and SC815 series.