Keep critical data available on a compact NAS designed for business file services, backup targets, and edge storage. The Buffalo TeraStation 5420DN delivers 64 TB of included capacity across four 16 TB drives, giving teams immediate usable storage without a separate drive sourcing project. Built for environments that need more than basic shared storage, this model adds 10GbE connectivity, RAID support, and iSCSI compatibility to fit into modern infrastructure stacks. That makes it a practical choice for branch offices, remote sites, and smaller data rooms where performance and data protection matter, but rack space and administration time are limited. The 5420DN is also TAA compliant, which matters for public sector and regulated procurement. With Buffalo’s business NAS platform, you get a system positioned for dependable file sharing, backup consolidation, and storage expansion planning at a price point that reflects enterprise-ready features rather than consumer hardware compromises.