| Product Type | Network Attached Storage (NAS) |
| Model | WS5420DN16S9 |
| Form Factor | Desktop |
| Processor Type | Intel Atom C3338 |
| Processor Speed | 1.5 GHz |
| Processor Cores | Dual-Core |
| Cache Memory | 4 MB |
| Installed RAM | 8 GB DDR4 |
| Operating System | Windows Server IoT 2019 Standard |
| Power Supply Type | Internal Power Supply |
| Input Voltage | 100-240V AC |
| Weight | Approx. 6.9 kg |
BUFFALO TeraStation 5420 Windows Server IoT 2019 NAS 16TB (4x4TB) RAID
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$1,917.19
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MSRP: $2,599.99
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- Dual-core Intel Atom C3338 1.5 GHz processor with 4 MB cache
- 8 GB DDR4 RAM for efficient multitasking and throughput
- 16TB total storage with 4x4TB SATA 6 Gb/s NAS drives
- Supports JBOD, RAID 0, 1, and 5 configurations
- Pre-installed Windows Server IoT 2019 Standard operating system
- Interfaces: Gigabit Ethernet, 2x USB 3.0 ports for connectivity and external backup
Shipping & Returns
Shipping & Returns
All our products can be shipped anywhere in the Continental United States.
Key Benefits
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- Pre-installed with Windows Server IoT 2019 Standard for seamless Windows ecosystem integration
- Includes 16TB of enterprise-class storage across four included drives to simplify deployment
- Designed, manufactured in Japan and TAA-compliant, ensuring quality and adherence to procurement standards
Product Overview
The BUFFALO TeraStation 5420 is a high-performance 4-bay NAS solution powered by a 1.5 GHz dual-core Intel Atom C3338 processor and 8 GB DDR4 RAM. Running Windows Server IoT 2019 Standard, it integrates smoothly with existing infrastructures. Equipped with four 4TB SATA 6 Gb/s drives, it delivers 16TB total storage and supports JBOD, RAID 0, 1, and 5 for flexible configurations. Gigabit Ethernet and dual USB 3.0 ports ensure fast data access and expansion. Its TAA compliance and Japanese manufacturing quality make it ideal for SMB and regulated environments.
Specifications
Product Overview
Storage Features
| Total Storage Capacity | 16 TB |
| Drive Bays | 4 |
| Installed Drives | 4 x 4 TB SATA HDD |
| Drive Interface | SATA 6 Gb/s |
| RAID Support | JBOD, RAID 0, RAID 1, RAID 5 |
| Hot-Swappable Drives | Yes |
| Drive Form Factor | 3.5-inch |
Compliance & Origin
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Certifications | VCCI, FCC Class A, CE, RoHS |
Advanced Security Features
| Access Control | User/Group Management, Folder-level Permissions |
| Encryption Support | AES 256-bit Drive Encryption |
| Antivirus Compatibility | Supports 3rd Party Antivirus |
| Network Security Protocols | HTTPS, FTPS, SFTP |
| Auto Failover Support | Yes |
| Support for Backup Software | Supports Windows Server Backup and third-party clients |
Interfaces
| Ethernet Ports | 2 x RJ-45 Gigabit Ethernet |
| USB Ports | 2 x USB 3.0 Type-A |
| USB Version | USB 3.0 |
| iSCSI Support | Yes |
| Network Protocols | TCP/IP, SMB, NFS, FTP, SNMP, HTTP/HTTPS |
Physical & Environmental
| Width | 6.7 in. (170 mm) |
| Depth | 9.1 in. (230 mm) |
| Height | 8.5 in. (216 mm) |
| Operating Temperature | 5°C to 35°C |
| Storage Temperature | -20°C to 60°C |
| Operating Humidity | 20% to 80% (non-condensing) |
| Noise Level | Approx. 35 dB |
Cloud Management & Licensing
| Management Software | Buffalo NAS Navigator, Remote Management via Windows Admin Center |
| License Included | Windows Server IoT 2019 Standard License |
| SMB Integration | Yes, supports Active Directory |
