Keep cabinet airflow moving where dense hardware needs it most. The HPE MSL3040 Upgrade Power Supply Kit is identified in the source data as a cabinet cooling fan assembly, designed to improve circulation inside compatible cabinet enclosures. With two 120 mm AC fans, a maximum fan speed of 2,700 rpm, and up to 607.6 gal/min of airflow, it is built to support thermal stability in demanding enclosed deployments. This kit is a practical choice when cabinet temperatures need more than passive ventilation. The included air filters help block dust and dirt before they reach sensitive equipment, reducing contamination inside the enclosure. That matters in environments where uptime depends on keeping airflow paths clear and internal temperatures controlled. For infrastructure teams managing cabinet-based storage or equipment enclosures, this cooling assembly adds a layer of protection that cheaper, lower-airflow options often cannot match. It is suited for installations where thermal headroom is limited and consistent circulation is part of the operating requirement.