| Product Type | Network Attached Storage (NAS) |
| Form Factor | 1U Rackmount |
| Family | TeraStation 3420RN |
| Manufacturer | BUFFALO TECHNOLOGY |
| Manufacturer Part Number | TS3420RN4804 |
| UPC | 747464136196 |
| Processor Manufacturer | Annapurna Labs |
| Processor Type | Alpine AL-214 |
| Processor Clock Speed | 1.4 GHz |
| Processor Cores | Quad-Core |
| RAM Type | DDR3 |
| Installed RAM | 1 GB |
| Power Supply Type | Internal Power Supply |
| Voltage Required | 100–240V AC |
| Power Frequency | 50/60 Hz |
| Warranty | 3-Year Manufacturer Warranty |
BUFFALO TeraStation 3420RN 48TB 4-Bay Rackmount NAS

Key Benefits
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- High-capacity 48TB configuration with four enterprise SATA drives ensures extensive storage for business applications.
- Quad-core Annapurna processor and 1GB DDR3 RAM provide dependable performance for small office deployments.
- Out-of-box rackmount readiness with TAA compliance and 3-year warranty adds reliability and peace of mind for IT managers.
Product Overview
The BUFFALO TeraStation 3420RN 48TB is a reliable and compact network-attached storage (NAS) unit, ideal for SMBs and professional environments needing centralized storage, backup, or private cloud capabilities. Configured with four 12TB SATA hard drives (48TB total) in a 1U rackmount chassis, this system supports RAID 0, 1, 5, 6, and 10 for flexible data protection. It is powered by a quad-core Annapurna Labs AL214 1.4 GHz processor and includes 1GB of DDR3 RAM, delivering stable performance. Equipped with dual RJ-45 Gigabit Ethernet ports and three USB 3.0 ports, the TeraStation 3420RN enables seamless integration into standard 19-inch racks with the included rail kit. The system is TAA-compliant and includes Rsynch backup features, a Linux-based OS, and global-ready 100–240V input, backed by a 3-year warranty. It is ideal for centralized backups, video surveillance archiving, or scalable private cloud storage.
Specifications
Product Overview
Wireless Features
Physical & Environmental
| Width | 430 mm |
| Depth | 430 mm |
| Height | 44.3 mm |
| Rack Compatibility | Standard 19-inch Rack |
| Chassis Type | Steel |
Cloud Management & Licensing
| Cloud Backup Options | Supported via Rsynch and third-party integrations |
| Management Interface | Web-based GUI |
Advanced Security Features
| Access Control | User and Group Level Permissions |
| Encryption | AES 256-bit Data Encryption |
Interfaces
| Ethernet Port Type | RJ-45 |
| Ethernet Port Count | 2 |
| Ethernet Speed | 1 Gbps |
| USB Version | USB 3.0 |
| USB Port Count | 3 |
| Data Link Protocol | Gigabit Ethernet |
Storage
| Drive Bays | 4 |
| Installed Drives | 4 x 12TB SATA |
| Drive Interface | SATA 6 Gb/s |
| Total Storage Capacity | 48 TB |
| RAID Support | RAID 0, 1, 5, 6, 10 |
Software & Operating System
| Operating System | Linux |
| Backup Features | Rsynch Support |
Compliance & Origin
| TAA Compliant | Yes |
| Country of Origin | Japan |