Product Type | Rackmount NAS |
Form Factor | 1U Rackmount |
Total Storage Capacity | 80TB |
Drive Bays | 4 |
Drive Type | 3.5" SATA NAS-grade HDD |
Included Drive Capacity | 4 x 20TB |
Processor | Intel Atom C3338 Dual-Core 1.5 GHz (Burst up to 2.2 GHz) |
Memory | 8GB ECC DDR4 |
Power Supply | Internal AC 100-240V, 50/60Hz |
Power Consumption (Max) | Approx. 90W |
RAID Support | RAID 0/1/5/JBOD |
Included Accessories | Rail kit, Ethernet cables, power cord |
Warranty | 3-Year VIP Warranty |
BUFFALO TeraStation 5420RN NAS 80TB 1U Rackmount





Key Benefits

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- Delivers 80TB of pre-configured storage in a compact 1U form factor, minimizing rack space usage
- Equipped with 10GbE networking and ECC memory, ensuring high performance and data integrity for business-critical applications
- TAA compliance and 3-year elite warranty support make it ideal for public sector and enterprise deployments
Product Overview
The BUFFALO TeraStation 5420RN NAS is a rackmount storage solution engineered for businesses requiring reliable, high-capacity network storage. Housed in a 1U chassis, the system includes four 20TB NAS-grade hard drives for a total of 80TB. It supports RAID 0, 1, 5, and JBOD configurations for performance and redundancy.
With an Intel Atom C3338 processor and 8GB ECC DDR4 memory, the TeraStation 5420RN ensures dependable performance. It features 10GbE and dual 1GbE ports for high-speed connectivity and three USB 3.0 Type-A ports for flexible expansion. A SATA 3.0 (6Gb/s) interface supports optimal data transfer rates.
TAA compliance and an included 3-year VIP warranty make this NAS solution suitable for federal applications and mission-critical environments. A rail kit is included for streamlined rack integration, making it a valuable asset for both enterprise and SMB deployments.
Specifications
Product Overview
Wireless Features
Integrated Wireless |
Compliance & Origin
Country of Origin | Japan |
TAA Compliant | Yes |
Certifications | FCC, VCCI, RoHS |
UPC | 747464135908 |
Advanced Security Features
Encryption | AES 256-bit Volume Encryption |
User Access Control | Yes—per-share and per-user permissions |
Firewall | Integrated IP Filter |
Antivirus Support | Supports third-party antivirus (not included) |
Secure Erase | Yes |
Event Logging | Syslog Support, Internal Logging |
Interfaces
LAN Ports | 1 x 10GbE RJ-45, 2 x 1GbE RJ-45 |
USB Ports | 3 x USB 3.0 Type-A |
Drive Interface | SATA 3.0 (6 Gb/s) |
Data Transfer Rate | Up to 10 Gbps (WAN/LAN) |
Network Protocols | SMB, AFP, FTP/FTPS, SFTP, NFS, HTTP/HTTPS, SNMP |
Physical & Environmental
Dimensions (H x W x D) | 44 x 430 x 430 mm (1.73 x 16.93 x 16.93 in) |
Weight | Approx. 8.5 kg (18.7 lbs) |
Operating Temperature | 5°C to 35°C (41°F to 95°F) |
Operating Humidity | 20% - 80% (non-condensing) |
Noise Level | Approx. 35 dB |
Cooling | 1 x Redundant Cooling Fan |
Cloud Management & Licensing
Management Interface | Web-Based GUI |
Cloud Integration | Microsoft Azure, Dropbox, Amazon S3 |
Remote Access | Buffalo WebAccess, FTP, SFTP |
Data Backup Services | NovaBACKUP (Windows), rsync, replication |
User Management | Active Directory Integration, Local User Management |