Buffalo TeraStation 3420RN 16TB 4-Bay 1U Rackmount NAS Server (4 x 4TB)

The Buffalo TS3420RN1604 is a 1U rackmount network attached storage server that provides 16TB of ready-to-use space for files, backups, and shared projects. It ships with four 4TB NAS-grade hard drives already installed, so you can power it on and begin protecting data immediately.

This model is built for environments where uptime matters. Each drive sits in a hot-swap bay that lets you replace a drive without shutting the system down, and the unit supports RAID 0, 1, 5, 6, 10, and JBOD modes to match your preferred balance of redundancy and capacity.

An Annapurna Labs Alpine AL-214 processor with four cores running at 1.4 GHz works alongside 1 GB of DDR3 memory to keep file transfers steady, even when multiple users connect at once. Two Ethernet ports sit on the rear panel, and one of them is ready for 2.5 GbE, which means faster throughput when you move large media files or nightly backups.

Integration is straightforward. The TeraStation joins an Active Directory domain and can manage as many as 10,000 user accounts, making it a practical choice for branch offices and growing businesses. Built-in cloud connectors sync folders with Dropbox, OneDrive, Amazon S3, and Azure so you can maintain an off-site copy without extra software.

Deployment scenarios include creative studios that need central storage for raw footage, professional service firms that must keep client records secure, or a home lab where multiple virtual machines require reliable shared storage. The short 1U chassis fits standard racks and leaves room for switches and backup power units.

Buffalo backs the system with a three-year warranty and a 24-hour hard drive replacement service, giving you confidence that downtime will stay minimal if a drive fails.

• 16 TB total capacity using four pre-installed 4 TB NAS-grade hard drives
• Annapurna Labs Alpine AL-214 quad-core 1.4 GHz processor
• 1 GB DDR3 memory
• Supports RAID 0, 1, 5, 6, 10, and JBOD
• Hot-swappable drive bays for uninterrupted operation
• Dual Ethernet ports, including one that supports 2.5 GbE speeds
• Active Directory integration for up to 10,000 users
• Cloud sync with Dropbox, OneDrive, Amazon S3, and Azure
• Web-based interface simplifies setup and monitoring
• Three-year warranty plus 24-hour hard drive replacement service