Product Type | Network Attached Storage (NAS) |
Model | TeraStation WS5420RN |
Form Factor | 1U Rackmount |
Processor Manufacturer | Intel |
Processor Type | Atom C3338 |
Processor Clock Speed | 1.5 GHz |
Number of Cores | Dual-Core |
Cache Memory | 4 MB |
Installed RAM | 8 GB ECC DDR4 |
Operating System | Microsoft Windows Storage Server 2016 |
Power Supply Type | Internal |
Power Requirements | 100-240V AC, 50/60Hz |
Included Accessories | Rackmount rail kit |
Warranty | 3-year TeraStation VIP warranty |
BUFFALO TeraStation 5420RN NAS 64TB 1U Rackmount





Key Benefits

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- Pre-configured with NAS-grade drives and RAID for rapid deployment and increased data protection
- Offers high-performance connectivity and processing via 10GbE port and Intel Atom C3338 processor
- Backed by a 3-year VIP warranty and TAA compliance for enterprise and government use
Product Overview
The BUFFALO TECHNOLOGY TeraStation 5420RN is a 1U rackmount NAS engineered for demanding business environments. Featuring 64TB of total capacity via four pre-installed 16TB SATA III drives, it supports RAID configurations including RAID 0, 1, 5, and JBOD. With an Intel Atom C3338 dual-core 1.5GHz processor and 8GB ECC DDR4 RAM, it delivers solid multitasking and secure operations. Connectivity includes 1 x 10GbE and 2 x 1GbE RJ-45 ports alongside 3 x USB 3.0 interfaces. Preloaded with Windows Storage Server 2016, it integrates well into Windows-based infrastructures. Built in Japan with TAA compliance, this solution includes a VIP 3-year warranty and a rackmount rail kit, making it ideal for enterprise-grade deployments.
Specifications
Product Overview
Storage & Drive Configuration
Total Storage Capacity | 64 TB |
Drive Configuration | 4 x 16TB SATA III 6Gb/s |
Number of Installed Drives | 4 |
Number of Drive Bays | 4 |
Supported RAID Levels | JBOD, RAID 0, RAID 1, RAID 5 |
Drive Type | NAS-grade SATA HDD |
Compliance & Origin
Country of Origin | Japan |
TAA Compliant | Yes |
Certifications | VCCI Class A, FCC Class A, CE |
Advanced Security Features
Data Protection Features | RAID support, Scheduled backup, Failover system, Drive encryption |
Access Control | User and group-level permissions, Active Directory Integration |
Encrypted Data Transmission | SMB encryption, SSL/TLS support |
Interfaces
10GbE RJ-45 Ports | 1 |
Gigabit Ethernet Ports | 2 |
Total RJ-45 Ports | 3 |
USB 3.0 Ports | 3 |
USB Interface Type | USB 3.0 Type A |
Network Interface Type | Gigabit Ethernet, 10 Gigabit Ethernet |
Physical & Environmental
Dimensions (W x D x H) | 430 x 414 x 44.3 mm |
Weight | 8.6 kg |
Operating Temperature | 5°C to 35°C (41°F to 95°F) |
Operating Humidity | 20% to 80% (non-condensing) |
Cooling System | Internal fan |
Mounting Type | Rackmountable |
Cloud Management & Licensing
Preloaded OS Features | Windows Storage Server features including SMB/CIFS, Active Directory support, and user/group permissions |
Software License | Windows Storage Server 2016 Standard pre-licensed |
Management Interface | BUFFALO NAS Navigator, web-based admin GUI |