The DB04048B12S is an IBM 40 mm cooling fan designed for the System x3550 M2 server. This 12 V DC fan provides reliable airflow to help maintain optimal operating temperatures for the server’s internal components. Built to match the original specifications of the x3550 M2, it offers seamless integration with the server’s existing fan controller and mounting system. Ideal for replacement or upgrade purposes, the fan delivers dependable performance in a compact 40 mm form factor, ensuring continued system stability and efficiency. This fan is engineered to meet IBM’s stringent reliability standards, making it suitable for both production and maintenance environments.