Buffalo TS3420RN0802

Overview

The Buffalo TS3420RN0802 is a 4-bay rackmount NAS server designed to deliver reliable and secure centralized storage for small offices and growing teams. It comes partially populated with two 4TB NAS-grade hard drives, providing 8TB of storage capacity with room to expand by adding drives to the remaining bays. Powered by a 1.4 GHz quad-core Annapurna processor and featuring a native 2.5GbE port, this unit supports fast data transfers and smooth multitasking for 10 to 30 users accessing files simultaneously. Its compact 1U rackmount design fits neatly into standard server racks, making it a practical choice for businesses needing efficient storage without occupying much space.

Key features

• Partially populated with two 4TB NAS-grade drives, allowing immediate use and easy expansion.
• 1.4 GHz quad-core Annapurna processor ensures smooth handling of multiple simultaneous tasks.
• Native 2.5GbE port enables faster data transfers over existing Cat5e cabling without network upgrades.
• Pre-configured RAID options simplify setup while protecting data against drive failures.
• Supports integration with popular cloud services like Dropbox, Amazon S3, and OneDrive for flexible backup and syncing.
• Built-in 256-bit AES encryption and two-factor authentication enhance data security against unauthorized access.
• Hot-swappable drives allow replacement or upgrades without shutting down the system, minimizing downtime.
• Manufactured in Japan and compliant with TAA standards, ensuring high quality and reliability.
• Includes a three-year warranty and 24/7 North America-based technical support for ongoing peace of mind.

Key specs

• Storage capacity: 8TB (2 x 4TB NAS-grade drives installed)
• Drive bays: 4-bay 1U rackmount chassis
• Processor: 1.4 GHz quad-core Annapurna Labs CPU
• Network interface: Native 2.5GbE port
• RAID support: Pre-configured RAID options for data protection
• Encryption: 256-bit AES
• Authentication: Two-factor authentication
• Drive hot-swapping: Supported
• Compliance: TAA compliant
• Warranty: 3 years with 24/7 North America-based support

Connectivity and compatibility

This NAS server connects via a native 2.5GbE port, which allows faster data transfers over existing Cat5e cabling, eliminating the need for costly network upgrades. It supports integration with widely used cloud storage services such as Dropbox, Amazon S3, and OneDrive, enabling flexible backup strategies and seamless file syncing across platforms. The device’s RAID configurations are compatible with standard NAS setups, providing reliable data protection and easy management for small business environments.

Performance and reliability

The 1.4 GHz quad-core Annapurna processor delivers consistent performance for multitasking and simultaneous file access by multiple users, making it suitable for teams of 10 to 30 people. Hot-swappable drives ensure that maintenance or upgrades can be performed without interrupting operations, which is critical for businesses that require continuous data availability. Built to TAA standards and manufactured in Japan, this NAS offers dependable quality and long-term reliability.

Ideal uses and environments

This NAS server fits well in small office environments and growing teams that need centralized, secure storage with room to expand. Its compact 1U rackmount design is ideal for server racks with limited space, while the 2.5GbE connectivity supports faster file transfers without requiring network infrastructure upgrades. Businesses that prioritize data security and uptime will benefit from its encryption, two-factor authentication, and hot-swappable drives. It is a strong choice for organizations looking to integrate local storage with cloud backup solutions.

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, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, 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; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

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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