Buffalo TS5820DN8004

Overview

The Buffalo TS5820DN8004 is an eight-bay desktop NAS server designed to provide a centralized storage solution for offices and workgroups. It comes with four pre-installed 20TB drives, delivering 80TB of raw capacity, while leaving four bays open for future expansion. Powered by a 2.04 GHz Annapurna Labs AL524 processor and 8 GB of DDR4 memory, it ensures smooth and responsive file transfers even with multiple users accessing data simultaneously. This NAS server supports various RAID configurations and offers robust security features, making it a reliable choice for managing large datasets and safeguarding sensitive information.

Key features

• Eight-bay design with hot-swappable drive trays allows easy maintenance and expansion without downtime.
• Supports RAID levels 0, 1, 5, 6, 10, and JBOD, enabling flexible balance between performance, capacity, and data protection.
• Dual 1 GbE ports and a dedicated 10 GbE RJ45 port provide versatile network connectivity options for different throughput needs.
• 256-bit drive encryption and optional two-factor authentication enhance data security, suitable for compliance with regulatory requirements.
• Certified compatibility with VMware and Microsoft Hyper-V supports virtualized environments and shared storage for production or test labs.
• Integrated cloud backup options with Dropbox and Amazon S3 simplify off-site data protection and help implement the 3-2-1 backup strategy.

Key specs

• Raw capacity: 80TB (4 x 20TB drives pre-installed)
• Drive bays: 8 (4 bays available for expansion)
• Processor: 2.04 GHz Annapurna Labs AL524
• Memory: 8 GB DDR4
• Network interfaces: 2 x 1 GbE ports, 1 x 10 GbE RJ45 port
• RAID support: 0, 1, 5, 6, 10, JBOD
• Drive encryption: 256-bit

Connectivity and compatibility

This NAS server integrates smoothly into existing network infrastructures with its dual 1 GbE ports for standard connections and a dedicated 10 GbE RJ45 port for high-speed access. It supports VMware and Microsoft Hyper-V environments, making it suitable for virtualized setups that require shared storage. The inclusion of cloud backup hooks for services like Dropbox and Amazon S3 extends its compatibility beyond local networks, enabling flexible and secure off-site backups.

Ideal uses and environments

The Buffalo TS5820DN8004 fits well in small to medium-sized businesses, creative studios, and IT departments that need a dependable central storage system. It is particularly useful for teams managing large files such as video projects or virtual machine snapshots. Its security features and RAID options make it a strong choice for organizations handling sensitive data or requiring high availability. The system’s expandability and network options also support growing firms planning for future storage needs and faster data access.

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.

Learn more

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.

Learn more

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.

Learn more