Product Type | Rackmount NAS |
Form Factor | 1U Rackmount |
Total Storage Capacity | 16 TB |
Drive Type | 3.5" SATA HDD |
Number of Bays | 4 |
Drive Capacity (per drive) | 4 TB |
RAID Support | JBOD, RAID 0, RAID 1, RAID 5 |
Processor Type | Intel Atom C3338 |
Processor Clock Speed | 1.5 GHz |
Processor Cores | Dual-Core |
Installed RAM | 8 GB |
RAM Type | DDR4 |
Cache Memory | 4 MB |
Operating System | Windows Server IoT 2019 Standard |
Power Input | 100–240V AC |
Power Supply Type | Internal AC PSU |
BUFFALO TeraStation 5420RN 16TB 4-Bay Rackmount NAS, Win Server IoT 2019
Key Benefits

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- Includes Windows Server IoT 2019 Standard, ideal for business-level network management and Active Directory integration
- Pre-installed 16TB storage with four enterprise-grade drives and flexible RAID support ensures data redundancy and scalability
- Low-profile 1.7” rackmount form with dual Gigabit ports and USB 3.0 offers easy deployment and fast data handling
Product Overview
The BUFFALO TeraStation 5420RN is a scalable rackmount NAS system offering 16TB of storage via four pre-installed 4TB SATA drives. Designed with Windows Server IoT 2019 Standard, it integrates seamlessly into enterprise environments. Powered by a 1.5 GHz Intel Atom C3338 processor and 8 GB DDR4 RAM, it supports RAID configurations (0, 1, 5, JBOD) and provides high-speed data access via Gigabit Ethernet and USB 3.0. TAA-compliant and rack-friendly (1.7” high), it's ideal for centralized storage, secure file management, and iSCSI-based virtualization.
Specifications
Product Overview
Wireless Features
Wi-Fi Support |
Compliance & Origin
TAA Compliant | Yes |
Country of Origin | Japan |
Certifications | UL, FCC Class A, VCCI, RoHS |
Advanced Security Features
User Authentication | Active Directory Integration |
Data Encryption | AES 256-bit (via BitLocker) |
Secure Boot Support | Yes |
Antivirus Software Compatibility | Supports third-party AV solutions |
Access Control | Role-based administration and folder permissions |
Interfaces
Ethernet Ports | 2 x Gigabit Ethernet (RJ-45) |
USB Ports | 2 x USB 3.0 |
Drive Interface | SATA 6 Gb/s |
iSCSI Support | Yes |
Network Protocols Supported | CIFS/SMB, AFP, FTP, NFS, SNMP, HTTP/HTTPS, iSCSI |
Physical & Environmental
Width | 16.9 inches |
Depth | 16.9 inches |
Height | 1.7 inches |
Weight | 16.3 lbs (approx.) |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
Operating Humidity | 10% to 85% (non-condensing) |
Cooling | Internal fan |
Rack Mount Hardware Included | Yes |
Cloud Management & Licensing
Management Interface | Web-based GUI, Windows Admin Center integration |
Remote Access Support | Yes (via WebAccess or VPN) |
Included Software | NovaBACKUP Buffalo Edition, NAS Navigator 2 |
License Type | Windows Server IoT 2019 Standard (pre-installed) |
Drive Encryption Support | Yes (BitLocker) |