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 |