Sustain business-critical storage with a platform sized for real infrastructure demands. The Buffalo TeraStation 51220RH delivers 120 TB in a 2U rackmount chassis, using 12 enterprise-class drive bays to provide the capacity and fault tolerance expected in production NAS deployments. With 10 GbE connectivity and iSCSI support, it fits cleanly into environments that need fast shared access for backup repositories, file collaboration, and application data. This model is built for teams that need more than basic file serving. The 12-bay design gives administrators room to balance capacity and resiliency through RAID, while the rack-mounted form factor keeps deployment predictable in standard equipment rows. For organizations replacing smaller NAS appliances, the 51220RH offers a stronger foundation for growth without moving to a full storage array. Choose this system when uptime, capacity planning, and network throughput matter more than entry-level pricing. It is a practical fit for branch offices, remote sites, and departmental storage tiers that need enterprise features in a compact footprint.