| Product Type | Network Attached Storage (NAS) |
| Form Factor | Desktop |
| Processor Type | ARM Cortex-A9 |
| Processor Clock Speed | 1.4 GHz |
| Number of Processor Cores | Dual-Core |
| Installed Memory (RAM) | 1 GB DDR3 |
| Total Storage Capacity | 4 TB |
| Included Drives | 2 × 2 TB SATA 6 Gb/s |
| RAID Support | RAID 0, 1, JBOD |
| Power Supply Type | Internal |
| Power Requirements | 100 – 240V AC, 50/60 Hz |
| Warranty | 3-Year Limited Warranty |
BUFFALO TeraStation 3220DN 4TB 2-Bay Desktop NAS

Key Benefits
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- Pre-installed drives provide a turnkey storage solution with no extra configuration required
- Supports RAID and iSCSI, enabling enterprise-grade data management for small teams
- TAA compliance and Japanese manufacturing make it ideal for regulated environments
Product Overview
The BUFFALO TeraStation 3220DN 4TB is a purpose-built 2-bay desktop NAS designed for professional use. Pre-installed with 2x2TB SATA 6 Gb/s drives, it provides RAID-ready 4TB storage and is ideal for backups and centralized data hosting. Powered by a 1.4 GHz processor and 1 GB RAM, it supports Gigabit Ethernet and features Active Directory and iSCSI compatibility. Its TAA compliance and Japanese build quality make it suited for government and enterprise needs. The unit offers a compact desktop form factor, dual USB 3.0 ports, and a 3-year warranty, making it a strong performer in its class.
Specifications
Product Overview
Physical & Environmental
| Width | 170 mm |
| Depth | 170 mm |
| Height | 230 mm |
| Weight | 3.3 kg |
| Operating Temperature | 5°C to 35°C (41°F to 95°F) |
| Operating Humidity | 20% – 80% (non-condensing) |
| Cooling System | Internal Fan |
| Chassis Material | Metal and Plastic |
Cloud Management & Licensing
| Remote Management | Buffalo NAS Navigator, Web UI |
| Cloud Backup Support | Supports Amazon S3, Dropbox, OneDrive |
| Bundled Software | NovaBACKUP Buffalo Edition |
| User Account Support | Up to 200 users |
Interfaces
| LAN Interfaces | 1 × Gigabit Ethernet (RJ-45) |
| USB Ports | 2 × USB 3.0 Type-A |
| Drive Interface | SATA 6 Gb/s |
| Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet |
| iSCSI Support | Yes |
| Active Directory Support | Yes |
Compliance & Origin
| Country of Origin | Japan |
| TAA Compliant | Yes |
| FCC Compliance | Class B |
| RoHS Compliance | Yes |
| Certifications | VCCI, CE, FCC, UL |
Advanced Security Features
| Encryption | AES 256-bit Encryption for Data-at-Rest |
| User Authentication | Active Directory Integration |
| Drive Encryption Support | Yes |
| Network Security Protocols | HTTPS, FTP over SSL, SFTP |