Product Type | Desktop NAS System |
Form Factor | 2U |
Drive Bays | 4 |
Pre-installed Drives | 2 x 4TB HDD |
Total Storage Capacity | 8TB |
Processor | AnnapurnaLabs AL524 Cortex-A57 Quad-Core 1.7GHz |
System Memory | 4GB DDR4 ECC |
Power Supply | Internal AC 100-240V, 50/60Hz |
Power Consumption (Max) | Approximately 60W |
BUFFALO TeraStation 5420DN 8TB 4-Bay Desktop NAS





Key Benefits

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- Preconfigured with dual 4TB drives to reduce setup time and streamline deployment.
- 10GbE and iSCSI support enable fast, flexible storage integration in demanding IT environments.
- TAA compliance and Japanese manufacturing offer reliable performance for government and enterprise use.
Product Overview
The BUFFALO TeraStation 5420DN is a high-performance desktop NAS system with 8TB of storage via two 4TB drives. Its 2U form factor and RAID support deliver secure, redundant storage for SMB environments. This device features 10GbE high-speed networking and iSCSI compatibility, making it suitable for data-heavy and virtualized workloads. TAA compliant and manufactured in Japan, it ensures both regulatory readiness and dependable quality. An excellent choice for businesses seeking secure, scalable network storage with minimal setup complexity.
Specifications
Product Overview
Wireless Features
Wi-Fi Support |
Compliance & Origin
Country of Origin | Japan |
TAA Compliant | Yes |
Certification Standards | FCC, VCCI, RoHS |
Advanced Security Features
Data Encryption | 256-bit AES Encryption |
User Authentication | Local Users / Active Directory |
Internal File Security | Access Control Lists (ACL) |
Network Security Protocols | SSL/TLS, SFTP |
Drive Lock Function | Yes |
Interfaces
LAN Interface | 1 x 10GbE (RJ-45), 2 x 1GbE |
USB Ports | 2 x USB 3.2 Gen 1 |
iSCSI Support | Yes |
RAID Levels | RAID 0/1/5/6/10/JBOD |
Hot-Swap Drive Support | Yes |
Data Transfer Rate | Up to 10 Gbps via 10GbE port |
Drive Interface | SATA III |
Physical & Environmental
Dimensions (W x H x D) | 170 x 215 x 230 mm |
Weight | Approx. 7.07 kg (15.59 lbs) |
Operating Temperature | 5°C to 35°C (41°F to 95°F) |
Operating Humidity | 20% to 80% (non-condensing) |
Fan | 92 mm cooling fan x1 |
Noise Level | Average 28 dB |
Cloud Management & Licensing
Cloud Management | Buffalo NAS Navigator and Web UI |
Remote Access Support | Buffalo WebAccess |
Backup Software Included | NovaBACKUP Buffalo Edition |
Active Directory Integration | Yes |
Cloud Storage Integration | Amazon S3, Dropbox |