Keep critical data close, protected, and available with the Buffalo TeraStation 5420RN. This 1U rackmount NAS ships with 64 TB across four 16 TB drives, giving teams a ready-to-deploy storage platform for file sharing, backup targets, and block-oriented workloads that need predictable access. Designed for rack environments where space matters, the 5420RN combines four-bay density with 10 GbE connectivity, RAID support, and iSCSI capability. That mix makes it a practical fit for departments that need more than basic file storage: centralized data access, faster transfer paths, and a storage layer that can support business continuity planning without adding complexity. The included rail kit simplifies installation in standard racks, while the 1U form factor helps preserve space for compute and networking gear. For organizations standardizing on Buffalo TeraStation hardware, this model offers a stronger storage foundation than entry-level NAS appliances by pairing higher capacity with enterprise-oriented connectivity and deployment flexibility.