Product Type | Network Attached Storage (NAS) |
Model | TeraStation 3420RN |
Form Factor | 1U Rackmount |
Processor Manufacturer | Annapurna Labs |
Processor Type | Alpine AL214 |
Processor Clock Speed | 1.4 GHz |
Processor Cores | Quad-Core |
Memory Type | DDR3 |
Installed Memory | 1 GB |
Storage Device Capacity per Drive | 16 TB |
Number of Drives Installed | 4 |
Total Storage Capacity | 64 TB |
Drive Interface | SATA 6 Gb/s |
Number of Drive Bays | 4 |
Supported RAID Levels | RAID 0, 1, 5, 6, 10 |
Included OS | Linux |
Power Supply Type | Internal Power Supply |
Power Requirements | 100–240V AC |
Weight | 6.9 kg |
BUFFALO TeraStation 3420RN 64TB 4-Bay 1U Rackmount NAS





Key Benefits

AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Includes rail kit for effortless integration into standard 19-inch rack systems
- Comes pre-configured with 64TB high-capacity storage, saving setup time and labor
- Backed by a 3-year warranty, ensuring long-term investment protection
Product Overview
The BUFFALO TeraStation 3420RN is a 64TB 1U rackmount NAS engineered for small to mid-sized businesses demanding reliable, high-capacity storage. Featuring four 16TB SATA 6 Gb/s drives and RAID support (0/1/5/6/10), it delivers essential data protection and performance. Driven by a quad-core 1.4 GHz Annapurna Labs AL214 CPU with 1GB DDR3 RAM, the unit is optimized for file sharing, iSCSI targets, and rsync-based backups. Integrated with dual 2.5GbE ports, USB 3.0 interfaces, and a Linux OS, it fits securely in standard 19-inch racks with an included rail kit. Built in Japan with TAA compliance and backed by a 3-year warranty, it ensures dependable enterprise performance.
Specifications
Product Overview
Physical & Environmental
Width | 430 mm |
Depth | 430 mm |
Height | 44.3 mm |
Mounting Type | 19-inch Rackmount |
Operating Temperature | 5°C to 35°C (41°F to 95°F) |
Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
Operating Humidity | 20% to 80% non-condensing |
Cooling | Quiet Fan with Sensor Control |
Cloud Management & Licensing
Management Interface | Web-based GUI |
Cloud Integration | Supported via Buffalo NAS Navigator and Remote WebAccess |
Remote Management | Yes |
Backup Options | rsync, Amazon S3, Dropbox support |
Interfaces
Ethernet Port Type | RJ-45 |
Number of Ethernet Ports | 2 |
Ethernet Speed | 2.5 Gigabit Ethernet |
USB Interface Type | USB 3.0 |
Number of USB 3.0 Ports | 3 |
Additional Interfaces | Serial Console Port |
Data Transfer Protocols | SMB, FTP, NFS, AFP, HTTP/HTTPS, iSCSI |
Compliance & Origin
Country of Origin | Japan |
TAA Compliant | Yes |
Certifications | FCC, VCCI, CE, RoHS |
Warranty | 3-Year Limited Warranty |
Advanced Security Features
Access Control | Active Directory Integration |
Network Security | SSL/TLS Encryption, Firewall Features |
Data Security | AES 256-bit Encryption |
Antivirus Compatibility | Supports Trend Micro NAS Security (License Required) |
Snapshot Support | Yes |