| Product Type | Network Attached Storage (NAS) |
| Model | TeraStation 3420DN |
| Form Factor | Desktop |
| Total Storage Capacity | 32 TB |
| Drive Configuration | 4 x 8 TB SATA 6 Gb/s HDD (Pre-installed) |
| Drive Bays | 4 |
| RAID Support | JBOD, RAID 0, 1, 5, 6, 10 |
| Processor Type | ARM Cortex-A9 |
| Processor Speed | 1.4 GHz |
| Installed Memory | 1 GB DDR3 |
| Operating System | Linux |
| Warranty | 3-Year Standard Warranty with 24-hour HDD Exchange and Technical Support Hotline |
BUFFALO TeraStation 3420DN 32TB 4-Bay NAS, 2.5GbE, RAID, Linux OS

Key Benefits
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- Includes four pre-installed 8TB drives, eliminating the need for additional components
- Built-in support for multiple RAID levels helps ensure data redundancy and performance scalability
- Comes with enterprise-grade support: 3-year warranty and 24-hour HDD exchange for peace of mind
Product Overview
The BUFFALO TeraStation 3420DN 32TB is a robust NAS solution with four 8TB SATA 6 Gb/s drives pre-installed, delivering 32TB of total capacity in a compact desktop form factor. Designed for SMBs and professional users, it supports advanced RAID configurations (0, 1, 5, 6, 10) for optimal data protection. With a 1.4 GHz processor and 1 GB DDR3 RAM, it handles file sharing and backup tasks efficiently. Featuring 2.5GbE Gigabit Ethernet and USB 3.0 connectivity, this Linux-based NAS offers both speed and flexibility. Additional benefits include TAA compliance, made in Japan manufacturing, and a 3-year warranty with 24-hour HDD exchange service.
Specifications
Product Overview
Wireless Features
Compliance & Origin
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Certifications | VCCI Class A, FCC Class A, ICES-003 Class A, UL, CE |
Advanced Security Features
| Access Control | Active Directory Integration, User Group Management |
| Network Security | IP Address Locking, SSL Encryption |
| Data Protection Features | Scheduled Backup, USB Drive Backup, Failover Support |
| Drive Encryption | AES 256-bit Encryption |
| Antivirus Support | Compatible with third-party antivirus programs |
Interfaces
| Ethernet Port Type | 2.5GbE RJ-45 |
| Ethernet Port Quantity | 1 |
| USB Ports | 2 x USB 3.0 Type-A |
| Supported Data Link Protocols | Gigabit Ethernet, Fast Ethernet, Ethernet |
Physical & Environmental
| Width | 170 mm |
| Depth | 215 mm |
| Height | 230 mm |
| Weight | Approx. 5.5 kg |
| Power Requirements | AC 100-240V |
| Power Supply Type | Internal Power Supply |
| Operating Temperature | 5°C to 35°C |
| Operating Humidity | 20% - 80% (non-condensing) |
| Cooling Type | Internal Fan |
| Noise Level | Approx. 28 dB |
Cloud Management & Licensing
| Management Interface | Web-based GUI via browser |
| Remote Management | Buffalo NAS Navigator, TeraStation Management Utility |
| Cloud Integration | Dropbox, Amazon S3 compatible |
| Bundled Software | NovaBACKUP Buffalo Edition for Windows PCs |
| License Included | NovaBACKUP for 11 PC clients |