| Product Type | Network Storage Server |
| Form Factor | 2U Rackmount |
| Drive Bays Populated | 4 of 12 |
| Total Drive Bays | 12 |
| Preinstalled Storage Capacity | 48 TB |
| Maximum Raw Capacity | Up to 144 TB (with 12 x 12TB drives) |
| Supported Drive Types | Enterprise-class SATA Hard Drives |
| Processor Type | Intel Atom C3000 series |
| Number of Processor Cores | 4 |
| System Memory (RAM) | 8 GB DDR4 ECC |
| Redundant Power Supply | Yes |
| Power Requirements | 100–240V, 50/60Hz AC |
| Power Consumption | 130W (typical) |
BUFFALO TeraStation 51220RH 48TB 12-Bay 2U Rackmount NAS

Key Benefits
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- Expandable 12-bay chassis allows businesses to scale storage as needed without initial overspend.
- Dual 10GbE ports deliver high-speed network throughput, optimizing performance for intensive workloads.
- TAA compliance and Japanese manufacturing ensure quality and suitability for government or regulated industry use.
Product Overview
The BUFFALO TeraStation 51220RH is a high-capacity 2U rackmount NAS engineered for enterprise environments that demand scalability, reliability, and performance. Outfitted with four 12TB enterprise-class hard drives for a total of 48TB of pre-installed storage, it leaves eight additional drive bays open, allowing IT administrators to expand storage in line with business growth. Its 12-bay design supports various RAID configurations to ensure data redundancy and protection, critical in mission-critical applications.
Equipped with dual 10GbE ports, the 51220RH delivers fast network throughput essential for high-volume data transfer, virtualization, and iSCSI integration. TAA compliance and a country of origin in Japan underscore its suitability for government and enterprise procurement. The included rail kit simplifies rack installation, making it deployment-ready out-of-the-box. The partially populated architecture offers cost savings upfront while supporting flexible scaling, mitigating the need for a full investment at the early stages of deployment.
Ideal for organizations seeking centralized data storage with high availability and advanced data protection features, the TeraStation 51220RH offers reliable, enterprise-grade NAS performance. Its design is well-suited for file sharing, backup, and disaster recovery in medium to large-size networks. With its expandable architecture and robust feature set, it promises to deliver long-term ROI in professional IT infrastructures.
Specifications
Product Overview
Wireless Features
| Built-in Wireless |
Compliance & Origin
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Certifications | VCCI Class A, FCC Class A, RoHS, UL |
| Environment Certification | RoHS Compliant |
Advanced Security Features
| Encryption Support | 256-bit AES Volume Encryption |
| User & Group Management | Yes (LDAP/AD integration) |
| Access Control | IP Address Filtering, Protocol Control |
| Antivirus Integration | Yes, with optional license |
| Backup Features | Scheduled backup, Rsync, USB backup |
| Snapshot Support | Yes |
Interfaces
| Network Interfaces | 2 x 10 Gigabit Ethernet, 2 x 1 Gigabit Ethernet |
| USB Interfaces | 2 x USB 3.0 (rear), 2 x USB 2.0 (front) |
| Supported RAID Levels | RAID 0/1/5/6/10/50/51/60/61/JBOD |
| Transfer Protocols | SMB, FTP, SFTP, NFS, AFP, HTTP/HTTPS, iSCSI |
| Drive Interface | SATA III (6 Gbps) |
Physical & Environmental
| Unit Dimensions (W x D x H) | 17.52 x 27.95 x 3.46 in (445 x 710 x 88 mm) |
| Rackmount Height | 2U |
| Weight | Approximately 18.2 kg (40.1 lbs) |
| Operating Temperature Range | 5°C to 35°C (41°F to 95°F) |
| Operating Humidity Range | 20% to 80% (non-condensing) |
| Cooling System | 2 x Redundant Hot-swappable Fans |
| Included Accessories | Rackmount rail kit, Power cords, Ethernet cables |
Cloud Management & Licensing
| Management Interface | Web-Based GUI, Buffalo NAS Navigator |
| Cloud Backup Support | Amazon S3, Dropbox, Microsoft Azure |
| Active Directory Integration | Yes |
| Firmware Updates | Automatic via web console |
| Licensing Required | No commercial licensing required |