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Buffalo TS5420DN6404 TS5420DN TeraStation 4-Bay Desktop NAS 64TB - 4 x 16TB w/ Hard Drives - Annapurna Labs Alpine Quad-core 2GHz - 8GB DDR4 - 10GbE
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Product Features
Technical Overview
This TeraStation model integrates enterprise-grade storage features into a compact desktop chassis. The system supports a full range of RAID configurations—including RAID 0, 1, 5, 6, 10, and JBOD—allowing administrators to balance performance, capacity, and data protection according to specific business needs. The Serial ATA controller manages all four drive bays, which are pre-populated with 16TB drives for a total usable capacity of 64TB.
Network connectivity is a standout feature, with three RJ-45 Ethernet ports supporting both 10 Gigabit and Gigabit Ethernet standards. This enables high-speed data transfers and network segmentation options. The system also includes four USB ports (two USB 2.0) for peripheral expansion and local backups.
Relevant factors for this section include Number of Hard Drives Supported, Number of Hard Drives Installed, Total Hard Drive Capacity Installed, Processor Manufacturer. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The TS5420DN combines substantial installed storage capacity with business-focused data protection features. Unlike many NAS systems that ship without drives, this model includes all four 16TB hard drives, eliminating the need for separate drive purchases and configuration time. The Annapurna Labs processor architecture provides efficient performance for NAS workloads while maintaining low power consumption.
High-Speed Network Architecture
With 10 Gigabit Ethernet support alongside standard Gigabit ports, this TeraStation can serve as a high-performance storage node in modern business networks, reducing transfer times for large files and improving overall network efficiency.
- Three RJ-45 ports
- Dual-speed Ethernet support
- Protocol compatibility including CIFS/SMB, NFS, iSCSI
Comprehensive Data Protection
The system's RAID support spans from basic striping to dual-parity configurations, giving IT administrators flexibility in designing storage arrays that match their specific requirements for speed, redundancy, or capacity optimization.
Deployment / Use Cases
The desktop form factor and complete storage configuration make the TS5420DN particularly suitable for small to medium businesses, remote offices, and departmental storage needs where rack space isn't available but substantial capacity is required. Its protocol support enables seamless integration into heterogeneous environments with Windows, macOS, and Linux clients.
Common deployment scenarios include centralized file repositories for collaborative workgroups, backup targets for server and workstation backups, and media storage for creative teams. The system's 10GbE capability makes it viable for video editing workflows and other bandwidth-intensive applications when connected to appropriate network infrastructure.
Departmental File Server
With 64TB of immediately available storage, the TS5420DN can serve as the primary storage for entire departments, hosting shared documents, project files, and archival data with RAID protection against drive failures.
Backup Appliance
The system's capacity and network connectivity make it an ideal target for backup software, providing a network-attached destination for both server and endpoint backups with the reliability of hardware RAID protection.
Physical Profile
Designed as a desktop unit, the TS5420DN measures approximately 12.41 pounds (5,629 grams), making it substantial enough for stable operation while remaining manageable for placement on desks, shelves, or dedicated NAS furniture. The desktop form factor eliminates the need for rack mounting hardware, simplifying deployment in office environments where rack infrastructure isn't present.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 12.41 lb (5629.08 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Weight
- 12.41 lb (5629.08 g)
Highlights
- 64TB of pre-installed storage across four 16TB Serial ATA/600 hard drives
- Annapurna Labs Alpine quad-core 2 GHz processor for efficient NAS performance
- 8GB DDR4 SDRAM standard memory for handling multiple concurrent operations
- 10 Gigabit Ethernet connectivity alongside standard Gigabit ports
- Comprehensive RAID support including levels 0, 1, 5, 6, 10, and JBOD
- Three RJ-45 network ports for connectivity flexibility
- Four USB ports (including two USB 2.0) for peripheral expansion
- Desktop form factor suitable for office environments without rack space
- TAA compliant and manufactured in Japan
- 3-year limited warranty for business peace of mind
Specifications
| Specifications | |
|---|---|
| Manufacturer | Buffalo Americas, Inc |
| Manufacturer Part Number | TS5420DN6404 |
| Brand Name | Buffalo |
| Product Line | TeraStation |
| Product Series | 5020 |
| Product Model | TS5420DN |
| Product Name | TeraStation TS5420DN SAN/NAS Storage System |
| Product Type | SAN/NAS Storage System |
| Storage | |
| Number of Hard Drives Supported | 4 |
| Number of Hard Drives Installed | 4 |
| Total Hard Drive Capacity Installed | 64 TB |
| Hard Drive Interface | Serial ATA/600 |
| Hard Drive Configuration | 4 x 16TB |
| Processor & Chipset | |
| Processor Manufacturer | Annapurna Labs |
| Processor Type | Alpine |
| Processor Core | Quad-core (4 Core) |
| Processor Speed | 2 GHz |
| Memory | |
| Standard Memory | 8 GB |
| Memory Technology | DDR4 SDRAM |
| Network & Communication | |
| Ethernet Technology | 10 Gigabit Ethernet,Gigabit Ethernet |
| I/O Expansions | |
| Number of Total Expansion Bays | 4 |
| Controllers | |
| Controller Type | Serial ATA |
| RAID Supported | Yes |
| RAID Levels | 0, 1, 5, 6, 10, JBOD |
| Interfaces/Ports | |
| Drive Interface | Serial ATA/600 |
| Total Number of USB Ports | 4 |
| Number of USB 2.0 Ports | 2 |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 3 |
| Management & Protocols | |
| Protocols | CIFS/SMB,AFP,FTP,SFTP,NFS,iSCSI,FTPS,TCP/IP |
| Power Description | |
| Maximum Power Supply Wattage | 100 W |
| Physical Characteristics | |
| Form Factor | Desktop |
| Weight (Approximate) | 12.41 lb (5629.08 g) |
| Miscellaneous | |
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What storage capacity comes installed in this Buffalo TeraStation?
This TS5420DN model ships with 64TB of total installed storage capacity, achieved through four pre-installed 16TB Serial ATA/600 hard drives. All four drive bays are populated, so the system is ready for immediate use without additional drive purchases. The drives are configured for the storage interface, but RAID setup occurs during initial system configuration.
What RAID configurations does this NAS support?
The Buffalo TeraStation TS5420DN supports RAID levels 0, 1, 5, 6, 10, and JBOD. This range provides flexibility for different storage priorities: RAID 0 for maximum performance, RAID 1 and 10 for mirroring, RAID 5 and 6 for parity-based protection with efficient capacity use, and JBOD for treating drives independently. The system includes hardware RAID support through its Serial ATA controller.
What network connectivity options are available?
This NAS features three RJ-45 Ethernet ports that support both 10 Gigabit Ethernet and standard Gigabit Ethernet. This dual-speed capability allows the system to integrate into existing Gigabit networks while providing 10GbE readiness for high-bandwidth applications. The multiple ports also enable network segmentation or link aggregation configurations for increased throughput or redundancy.
What processor powers this TeraStation model?
The TS5420DN uses an Annapurna Labs Alpine quad-core processor running at 2 GHz. This ARM-based processor architecture is designed for efficient performance in network-attached storage applications, balancing processing capability with power efficiency. The quad-core design helps manage multiple simultaneous data requests and background tasks.
How much memory is included, and what type is it?
The system comes standard with 8GB of DDR4 SDRAM. This memory capacity supports the operating system, caching functions, and simultaneous user connections. DDR4 technology provides better performance and power efficiency compared to older memory standards, contributing to overall system responsiveness during file operations and data management tasks.
What is the form factor and weight of this NAS?
The TS5420DN uses a desktop form factor, designed to sit on a desk, shelf, or dedicated NAS furniture rather than requiring rack mounting. It weighs approximately 12.41 pounds (5,629 grams), making it substantial enough for stable operation while remaining portable for office deployment. The desktop design makes it suitable for environments without rack infrastructure.
| Qty | Price | Available |
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