HP 99999 Internal Drive Enclosure 726547-B21

The HP 726547-B21 Internal Drive Enclosure is a purpose-built storage expansion kit designed exclusively for the HP ProLiant ML350 Gen9 tower server. It adds eight large form factor (LFF) 3.5-inch drive bays to the server's internal chassis, making it an ideal upgrade path for environments where storage demands are growing but a full server replacement is not justified. The kit integrates directly into the ML350 Gen9's existing drive bay architecture, maintaining the server's airflow management and hot-swap capabilities.

For organizations running data-intensive workloads such as file servers, virtualization hosts, or backup repositories, this enclosure provides the physical infrastructure to significantly increase raw storage capacity. By accommodating eight additional 3.5-inch drives, users can add tens of terabytes of spinning disk storage or high-capacity enterprise SATA and SAS drives. It is worth noting that drives and any additional controller cards are sold separately, so the total investment should be planned accordingly.