Buffalo TS5420RN6404

Overview

The Buffalo TS5420RN6404 is a 4-bay rackmount NAS server designed to provide businesses with a high-capacity, reliable storage solution. Equipped with four 20TB hot-swappable drives, it offers a total of 80TB storage, ideal for managing large data sets such as media files, databases, and backups. Powered by a 2.04 GHz Annapurna Labs AL524 processor and 8GB of DDR4 RAM, it delivers efficient data processing and transfer speeds suitable for multi-user environments.

This NAS server supports multiple RAID configurations to balance performance and data protection, while its rackmount form factor fits seamlessly into existing IT infrastructure. Enhanced security features and cloud integration make it a versatile choice for businesses requiring secure, scalable, and accessible storage.

Key features

• Four 20TB hot-swappable drives allow for easy maintenance and expansion without downtime.
• Flexible RAID support including 0, 1, 5, 6, 10, and JBOD to tailor data management to specific needs.
• Dual 1 GbE and 10 GbE network ports provide fast and reliable connectivity for smooth file transfers and multiple users.
• 256-bit AES encryption safeguards stored data against unauthorized access.
• Two-factor authentication adds an extra layer of security for user access control.
• Seamless integration with cloud services like Dropbox, Amazon S3, Microsoft Azure, and OneDrive enables hybrid backup and synchronization strategies.
• Rackmount design ensures organized installation within server racks, optimizing space in professional IT environments.

Key specs

• Storage capacity: 80TB (4 x 20TB drives)
• Processor: Annapurna Labs AL524, 2.04 GHz
• Memory: 8GB DDR4 RAM
• Network interfaces: Dual 1 GbE ports, 1 x 10 GbE port
• RAID levels supported: 0, 1, 5, 6, 10, JBOD
• Encryption: 256-bit AES
• Form factor: 4-bay rackmount

Connectivity and compatibility

The NAS server’s combination of dual 1 GbE and a 10 GbE port supports a range of network speeds, making it adaptable to different IT setups. This ensures efficient data flow whether connected to standard office networks or high-speed data centers. Compatibility with major cloud platforms allows businesses to extend their storage capabilities and implement hybrid cloud workflows with ease.

Ideal uses and environments

This TeraStation model is well suited to businesses that require large, secure, and accessible storage for critical data. It fits well in office environments managing extensive media libraries, backup archives, or databases. Its rackmount design and robust security features make it a strong choice for IT departments looking to centralize file storage while maintaining data integrity and access control.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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