Protect DriveStation Duo performance under continuous load with a purpose-built optional fan from BUFFALO. Designed for the HD-WH enclosure, this accessory adds active airflow where multi-drive systems need it most: around the storage bay, where heat can build during transfers, backups, and long runtime windows. For IT teams and power users, thermal stability is not a convenience feature. It is part of preserving drive health, keeping acoustics predictable, and reducing the chance of heat-related slowdowns when the enclosure is working hard. This fan is a straightforward way to add cooling support without changing the storage platform itself. Because it is matched to the DriveStation Duo form factor, the fan integrates as an accessory rather than a workaround. That matters when you want a cleaner deployment, fewer variables, and a cooling path that aligns with the hardware you already own. For environments where storage uptime and consistency matter more than flashy extras, this is the kind of add-on that earns its place.