Product Type | Network Attached Storage (NAS) |
Model | TeraStation 5420DN |
Form Factor | Desktop |
Drive Bays | 4 |
Pre-installed Drives | 4 x 12TB |
Total Storage Capacity | 48 TB |
Internal Interface | SATA |
Processor | Annapurna Labs Alpine AL524 Cortex-A57 Quad-Core 1.7GHz |
RAM | 4 GB DDR4 ECC |
RAID Levels Supported | 0, 1, 5, 6, 10, JBOD |
Power Supply | Internal AC 100–240 V, 50/60 Hz |
Power Consumption | Maximum 70W |
Cooling | 120mm fan |
BUFFALO TERASTATION 5420DN 48TB Desktop NAS with 4x12TB Drives





Key Benefits

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- - Enterprise-grade storage provided by 48TB pre-configured capacity ensures readiness for heavy-duty data demands.
- - Integrated 10GbE interface enables faster network performance critical for high-volume transfers and backups.
- - TAA compliance and Japanese origin make it suitable for regulated industries and government procurement.
Product Overview
The BUFFALO TERASTATION 5420DN is a high-performance 48TB desktop NAS designed for demanding business storage needs. It includes 4x12TB hard drives and supports RAID configurations for improved data redundancy. A built-in 10GbE port enables fast data transfers, ideal for intensive workloads. The NAS supports iSCSI for flexible storage integration and is TAA compliant, making it fit for government use. With its advanced features and enterprise-quality hardware, the 5420DN ensures secure, efficient, and scalable storage deployment.
Specifications
Product Overview
Cloud Management & Licensing
Cloud Integration | Dropbox, Microsoft Azure, OneDrive, Amazon S3 |
Remote Management | Buffalo NAS Navigator, Web-based GUI |
Cloud Backup Support | Yes |
Snapshot Backup | Yes |
Replication Support | Yes |
Physical & Environmental
Dimensions | 231 x 170 x 230 mm |
Weight | 9 kg |
Operating Temperature | 5°C to 35°C |
Storage Temperature | -20°C to 60°C |
Operating Humidity | 20% to 80% (non-condensing) |
Fan Type | Internal smart fan |
Noise Level | 32 dB(A) |
Interfaces
LAN Ports | 2 x RJ-45 1GbE, 1 x RJ-45 10GbE |
USB Ports | 2 x USB 3.0 Type-A |
Data Transfer Rates | 10/100/1000 Mbps, 10 Gbps |
iSCSI Support | Yes |
Advanced Security Features
Encryption | AES 256-bit |
Access Control | Active Directory Integration, User/Group Permissions |
Antivirus | Trend Micro NAS Security (optional license) |
RAID Data Protection | Yes |
Network Protocol Support | SMB, FTP, SFTP, NFS, AFP, WebAccess |
Security Standards | TAA Compliant |
Compliance & Origin
Country of Origin | Japan |
Certifications | TAA, VCCI, FCC, CE, RoHS |
UPC | 747464135823 |
Manufacturer Part Number | TS5420DN4804 |
Manufacturer | Buffalo Technology |