Buffalo TS5420RN8004

Overview

The Buffalo TS5420RN8004 is a rackmount network attached storage (NAS) server designed to provide 80 TB of reliable on-premises storage for teams and businesses. Equipped with four 20 TB hot-swappable drives, it supports continuous operation even during drive replacements or upgrades. Powered by a 2.04 GHz Annapurna Labs AL524 processor and 8 GB of DDR4 memory, this NAS handles file transfers and backups efficiently, while its combination of dual 1 GbE ports and a 10 GbE port ensures smooth network performance for both everyday and high-bandwidth tasks.

Key features

• Hot-swappable drives allow for easy expansion or replacement without downtime, keeping your workflow uninterrupted.
• Multiple RAID options (0, 1, 5, 6, 10, JBOD) provide flexible choices between performance and data redundancy to suit your storage needs.
• 256-bit AES encryption and two-factor authentication protect sensitive data from unauthorized access.
• Seamless integration with popular cloud services like Dropbox, Amazon S3, Microsoft Azure, and OneDrive enables flexible off-site backup and synchronization without additional hardware.
• 1U rackmount form factor fits standard server racks, making it easy to add to existing IT infrastructure.
• 10 GbE port supports bandwidth-intensive applications such as large media projects, virtualization, and rapid disaster recovery.

Key specs

• Storage capacity: 80 TB (4 x 20 TB drives)
• Processor: Annapurna Labs AL524, 2.04 GHz
• Memory: 8 GB DDR4 RAM
• Network interfaces: 2 x 1 GbE ports, 1 x 10 GbE port
• RAID support: 0, 1, 5, 6, 10, JBOD
• Encryption: 256-bit AES
• Form factor: 1U rackmount

Connectivity and compatibility

This NAS server offers versatile network connectivity options to fit various environments. The dual 1 GbE ports handle standard network traffic efficiently, while the 10 GbE port is designed for tasks requiring higher throughput. It integrates smoothly with existing network setups and supports direct connections to major cloud storage providers, allowing hybrid storage strategies that combine local and cloud backups.

Ideal uses and environments

The TS5420RN8004 is well suited for small to medium businesses, branch offices, and creative studios that require dependable, high-capacity storage with strong data protection. Its hot-swappable drives and RAID flexibility make it a practical choice for teams managing large files or running virtualization environments. The rackmount design and network options also make it a solid fit for IT professionals looking to upgrade or expand their server infrastructure without complex installation.

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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