Buffalo TeraStation 51220RH 48TB 12-Bay NAS Server

Overview

The Buffalo TS51220RH4804 is a rackmount network attached storage (NAS) server designed to provide 48 TB of enterprise-grade storage capacity with room to expand. It comes with four pre-installed 12 TB drives in a 12-bay chassis, allowing immediate data protection and easy scalability. Powered by a 2.04 GHz quad core processor and 16 GB of DDR4 memory, it maintains responsive file transfers even under heavy multi-user workloads, making it suitable for creative teams, virtual machine environments, and branch offices needing centralized storage.

Key features

• Pre-installed enterprise drives deliver large storage capacity right out of the box, reducing setup time.
• 12-bay rackmount chassis with hot-swap drive bays enables seamless maintenance and future expansion without downtime.
• Dual 10 GbE ports provide fast data transfer speeds, ideal for handling large files and shortening backup windows.
• Additional 1 GbE ports offer network compatibility and failover options to ensure continuous access.
• Flexible RAID configurations (0, 1, 5, 6, 10, or JBOD) allow you to balance speed, redundancy, and capacity based on your workload.
• 256-bit AES encryption protects data at rest, while two-factor authentication secures management access.
• Integration with Microsoft Active Directory, Windows Server, and VMware ESXi simplifies deployment in existing IT environments.
• Hybrid cloud support enables backup and replication to Dropbox, Amazon S3, and Microsoft Azure for disaster recovery and offsite storage.

Key specs

• Storage capacity: 48 TB raw (four 12 TB drives pre-installed)
• Drive bays: 12 hot-swappable bays
• Processor: 2.04 GHz quad core
• Memory: 16 GB DDR4
• Network interfaces: Dual 10 GbE ports, two 1 GbE ports
• RAID support: 0, 1, 5, 6, 10, JBOD
• Encryption: 256-bit AES for data at rest
• Authentication: Two-factor authentication for management console

Connectivity and compatibility

This NAS server offers multiple network ports to fit various infrastructure needs. The dual 10 GbE ports enable rapid data transfers, which is essential for environments handling large media files or virtual machines. The additional 1 GbE ports provide compatibility with standard networks and offer failover capabilities to maintain uptime. It integrates smoothly with Microsoft Active Directory and VMware ESXi, making it a practical choice for businesses using these platforms.

Performance and reliability

The combination of a quad core processor and 16 GB of DDR4 memory ensures that the system can handle multiple simultaneous users and demanding workloads without lag. The hot-swap design allows drives to be replaced or upgraded without interrupting service, which is critical for maintaining continuous access to data. RAID options provide flexibility to optimize for speed or redundancy, depending on your priorities.

Ideal uses and environments

This NAS server fits well in small to midsize businesses that require centralized, scalable storage with strong data protection. It is particularly suited for creative teams working with large video files, IT administrators consolidating file servers, and branch offices needing a reliable shared repository. Its hybrid cloud capabilities also make it a good option for organizations looking to implement offsite backups or disaster recovery solutions.