Product Type | Network Attached Storage (NAS) |
Form Factor | Desktop, 2U Height |
Chassis Configuration | 4-Bay |
Pre-installed Drives | 2 x 8TB HDD |
Total Storage Capacity | 16 TB |
RAID Support | RAID 0/1/5/6/10/JBOD |
Drive Bays | 4 hot-swappable bays |
Processor | Annapurna Labs Alpine AL524 (Quad-core ARM Cortex-A57) |
Processor Speed | 1.7 GHz |
Installed RAM | 4 GB DDR4 |
Power Supply | Internal 90W power supply |
Power Consumption (Max) | Approx. 65W |
Hot-Swap Support | Yes |
iSCSI Support | Yes, iSCSI Target and Initiator |
BUFFALO TECHNOLOGY TERASTATION 5420DN NAS 16TB Desktop





Key Benefits

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- Compact 4-bay form factor with 16TB capacity is ideal for SMB data storage needs
- 10GbE support ensures optimal performance in high-throughput environments
- TAA compliance and Japanese manufacturing add enterprise-level trust and value
Product Overview
The BUFFALO TECHNOLOGY TeraStation 5420DN delivers 16TB of total storage using two pre-installed 8TB hard drives, housed in a 4-bay desktop chassis. Specifically built for professional environments, this NAS system supports advanced features such as RAID configurations and iSCSI target functionality. These capabilities make it ideal for businesses requiring high-availability file access, storage consolidation, or reliable backup solutions.
Hardware-wise, the TeraStation 5420DN is built in a 2U cabinet form factor and incorporates 10GbE network connectivity, offering faster data transfers and optimized performance for bandwidth-heavy applications. Compliance with TAA regulations and a country of origin listed as Japan underline its robustness and suitability for use in federal and high-assurance IT environments.
This NAS is designed with scalability and flexibility in mind, catering to the evolving data needs of growing businesses. Whether it's document management, media asset archiving, or virtualized storage deployment via iSCSI, the 5420DN helps organizations stay efficient and compliant without compromising on performance or reliability.
Specifications
Product Overview
Cloud Management & Licensing
Remote Management | Via Buffalo NAS Navigator and Web GUI |
Cloud Storage Integration | Supports Dropbox, Microsoft Azure, Amazon S3 |
Included Cloud Features | Remote monitoring, cloud backup support |
Licensing Model | No subscription required for core features |
Physical & Environmental
Dimensions (W x D x H) | 170 x 230 x 170 mm (6.7 x 9.1 x 6.7 in) |
Weight | Approx. 5.5 kg (12.1 lbs) |
Operating Temperature | 5°C to 35°C (41°F to 95°F) |
Operating Humidity | 20% – 80% (non-condensing) |
Cooling | Internal fan with automatic speed control |
Noise Level | Approx. 28 dB |
Interfaces
Ethernet Ports | 2 x 10GbE (RJ-45) |
USB Ports | 2 x USB 3.2 Gen 1 (Type-A) |
LAN Interface Type | 10 Gigabit Ethernet |
Link Aggregation | Yes (Port Trunking) |
Advanced Security Features
Encryption | AES 256-bit Volume Encryption |
User/Group Account Control | Yes, Active Directory Integration |
Access Control | NAS-level folder and share access permissions |
Virus Scanning | Supports integration with antivirus software (optional) |
Compliance & Origin
Country of Origin | Japan |
TAA Compliant | Yes |
Certifications | FCC, VCCI, RoHS, UL, CE |
Warranty | 3-Year Standard Warranty |