Keep critical files available when users need them most. The Buffalo TeraStation 5820DN 64TB brings 64 TB of included NAS capacity, 10 GbE networking, and RAID protection into a rack-mount platform designed for demanding business storage. It is a practical fit for IT teams that need fast shared access without moving to a more complex storage stack. With eight 8 TB NAS drives included, this model is ready for deployment as a file server, backup repository, or centralized storage node. RAID support helps preserve data availability, while iSCSI support gives infrastructure teams more flexibility in how the array is presented across the environment. The rack-mount form factor keeps it aligned with standard server-room layouts and simplifies integration into existing racks. For organizations balancing performance, capacity, and procurement discipline, the 5820DN offers a clear middle ground: more capable than entry-level desktop NAS, but without the overhead of enterprise SAN platforms. It is built for teams that value predictable operation, fast network access, and a storage appliance that can support day-to-day production workflows as well as recovery planning.