Buffalo TeraStation 5420RN 16TB Rackmount 4-Bay NAS Server

The Buffalo TS5420RN1604 is a rackmount network attached storage server that delivers 16 TB of dependable, on-premise capacity in a four-bay chassis. It arrives populated with four 4 TB drives, so you can place it in the rack, power it on, and start protecting data within minutes.

An Annapurna Labs AL524 quad-core processor works with 8 GB of DDR4 memory to keep file transfers, multi-user access, and scheduled backups running smoothly even during busy periods.

The hot-swap drive trays let you replace a failed disk or install higher-capacity drives while the system stays online, eliminating downtime for teams that cannot afford interruptions. RAID 0, 1, 5, 6, 10, and JBOD modes are available, allowing you to choose the right balance between performance and redundancy.

Two 1 GbE ports handle everyday traffic, and a 10 GbE RJ45 port is ready when larger media files or virtualization workloads demand higher throughput. Link aggregation and failover features help maintain continuous availability.

Data security is built in. Hardware-based 256-bit encryption protects files at rest, and optional two-factor authentication adds an additional layer at login, helping organizations meet strict compliance requirements.

The NAS connects to Dropbox, Amazon S3, Microsoft Azure, and OneDrive accounts, so you can set up hybrid cloud backup or off-site replication without extra software. This approach keeps primary data local for fast access while maintaining an off-site copy for disaster recovery.

The TeraStation 5420RN suits small and mid-size businesses that need a reliable file server, a central storage pool for creative assets, a repository for surveillance footage, or a target for virtual machine snapshots. Its tool-free management interface and rackmount form factor make it easy for IT staff to deploy and maintain in a range of environments, from office server rooms to branch locations.

Highlights:

• Four-bay rackmount NAS pre-populated with four 4 TB drives for 16 TB total capacity
• Hot-swap design keeps services online during drive replacement or expansion
• Annapurna Labs AL524 processor and 8 GB DDR4 memory maintain consistent throughput under load
• Dual 1 GbE and one 10 GbE RJ45 ports support flexible network integration
• RAID 0, 1, 5, 6, 10, and JBOD modes adapt to different performance and redundancy goals
• Hardware 256-bit encryption and optional two-factor authentication secure sensitive data
• Cloud integration with Dropbox, Amazon S3, Microsoft Azure, and OneDrive simplifies hybrid backup and off-site replication