Buffalo TS5420DN8004

Overview

The Buffalo TS5420DN8004 is a four-bay desktop network-attached storage (NAS) server designed to provide small and mid-sized offices with a reliable solution for storing, sharing, and protecting large volumes of data. Equipped with four pre-installed 20TB drives, it offers a total raw capacity of 80TB. Powered by an Annapurna Labs AL524 processor and 8GB of DDR4 memory, it ensures smooth data transfers even when multiple users access the system simultaneously. Its combination of high-speed networking and robust security features makes it well suited for demanding workflows such as 4K video editing, virtualization, and centralized backup.

Key features

• Four hot-swappable drive bays allow for easy replacement of drives without downtime, maintaining continuous access for users.
• Dual 10-Gigabit Ethernet ports deliver high-bandwidth connectivity for intensive tasks, while two 1-Gigabit ports ensure compatibility with existing network infrastructure.
• Supports multiple RAID configurations (0, 1, 5, 6, 10) and JBOD, enabling flexible choices between performance, capacity, and data redundancy.
• Hardware-based 256-bit AES encryption safeguards sensitive data, complemented by optional two-factor authentication for enhanced security.
• Integration with popular cloud services like Dropbox, Amazon S3, and Microsoft Azure facilitates off-site backups and disaster recovery strategies.
• Certified compatibility with VMware and Microsoft Hyper-V allows seamless use as shared storage or backup targets in virtualized environments.

Key specs

• Storage capacity: 80TB (four 20TB drives pre-installed)
• Processor: Annapurna Labs AL524
• Memory: 8GB DDR4
• Network interfaces: 2 x 10-Gigabit Ethernet, 2 x 1-Gigabit Ethernet
• RAID support: 0, 1, 5, 6, 10, JBOD
• Encryption: Hardware-based 256-bit AES
• Drive bays: 4 hot-swappable

Connectivity and compatibility

This NAS server offers versatile networking options to fit into various office environments. The two 10-Gigabit Ethernet ports provide the bandwidth needed for data-intensive applications like video editing and virtualization, while the two 1-Gigabit ports maintain compatibility with standard network equipment. Its certification for VMware and Microsoft Hyper-V ensures smooth integration with popular virtualization platforms, making it a practical choice for IT administrators managing virtual machine storage and backups.

Ideal uses and environments

The TS5420DN8004 is a strong choice for creative studios handling large media files, branch offices requiring reliable on-premises backup solutions, and small to mid-sized businesses that need centralized, secure storage accessible by multiple users. Its combination of high capacity, fast networking, and robust security features supports workflows that demand both speed and data protection. Teams working with 4K video, virtualization, or large archives will find this NAS server fits well into their infrastructure.

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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