Buffalo TS5820DN4804

Overview

The Buffalo TS5820DN4804 is a desktop NAS server designed to deliver reliable and high-capacity storage for business environments. It features 48TB of total storage across four 12TB drives within an 8-bay chassis that supports hot-swappable drives, allowing you to replace or upgrade drives without downtime. Powered by a 2.04 GHz Annapurna Labs quad-core processor and 8GB of DDR4 RAM, it handles demanding storage tasks efficiently while supporting multiple RAID configurations to balance speed, capacity, and data protection.

Key features

• Hot-swappable 8-bay design enables easy drive replacement or upgrades without interrupting access to data
• Supports RAID 0, 1, 5, 6, 10, and JBOD to tailor performance and redundancy to your business needs
• Dual Gigabit Ethernet and 10GbE ports provide fast and reliable network connectivity for multiple users
• 256-bit encryption combined with two-factor authentication ensures strong protection of sensitive information
• Seamless integration with cloud services like Dropbox, Amazon S3, Microsoft Azure, and OneDrive for flexible backup and remote access
• Certified for VMware and Hyper-V, making it suitable for virtualized IT environments
• Built-in snapshot technology allows quick recovery from accidental data loss or corruption, minimizing downtime

Key specs

• Total storage: 48TB (4 x 12TB drives)
• Processor: Annapurna Labs 2.04 GHz quad-core
• Memory: 8GB DDR4 RAM
• Drive bays: 8-bay chassis with hot-swappable support
• RAID levels supported: 0, 1, 5, 6, 10, JBOD
• Network interfaces: Dual Gigabit Ethernet ports, 1 x 10GbE port
• Security: 256-bit encryption, two-factor authentication

Connectivity and compatibility

This NAS server offers versatile network connectivity options to fit into various business networks. The dual Gigabit Ethernet ports allow for link aggregation or failover, enhancing network reliability and throughput. The 10GbE port supports high-speed data transfers, which is especially beneficial in environments where large files are accessed by multiple users simultaneously. Compatibility with VMware and Hyper-V ensures smooth integration into virtualized infrastructures, while cloud service support expands backup and remote access possibilities.

Performance and reliability

The combination of a quad-core 2.04 GHz processor and 8GB of DDR4 RAM provides the processing power needed for smooth multitasking and fast data handling. The hot-swappable drive bays reduce maintenance interruptions, and the variety of RAID options lets you optimize for speed, redundancy, or capacity depending on your priorities. Security features like 256-bit encryption and two-factor authentication protect your data from unauthorized access, while snapshot technology offers a safety net against accidental deletions or file corruption.

Ideal uses and environments

This NAS server fits well in small to medium-sized offices, creative studios, and departments that require dependable storage with fast network access. It is a strong choice for teams that handle large files, such as video editing or data analysis, and for IT environments that rely on virtualization. Its robust security and backup features also make it suitable for businesses that need to safeguard sensitive information while maintaining continuous access to critical data.

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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