Buffalo OP-HD6.0N

Overview

The Buffalo OP-HD6.0N is a 6TB replacement hard drive designed specifically for TeraStation NAS users who need to expand or restore their storage quickly and reliably. It fits seamlessly into the 5210DN, 5410DN, and 5410RN models, offering a straightforward upgrade without compatibility concerns. Featuring a SATA III interface with data transfer speeds up to 6 Gb per second, this 3.5-inch drive supports smooth handling of large files, backups, and continuous data access.

Key features

• 6TB capacity provides ample space for extensive media libraries, business archives, and backup data.
• Compatible with TeraStation 5210DN, 5410DN, and 5410RN models for easy integration.
• 3.5-inch form factor matches existing drive bays, simplifying installation even for first-time NAS users.
• SATA III interface ensures efficient and responsive data transfers at speeds up to 6 Gb/s.
• Hot-swappable design allows drive replacement or addition without powering down the NAS, reducing downtime.
• Power-efficient operation supports continuous 24/7 use while helping to manage energy consumption.

Key specs

• Storage capacity: 6TB
• Interface: SATA III (6 Gb/s)
• Form factor: 3.5-inch
• Compatibility: Buffalo TeraStation 5210DN, 5410DN, 5410RN
• Hot-swappable: Yes

Installation and setup

Installing the OP-HD6.0N is straightforward thanks to its 3.5-inch size that fits directly into the TeraStation drive bays. The hot-swappable feature means you can add or replace the drive without shutting down your NAS, which is especially valuable for environments that require constant data availability. This ease of installation makes it accessible for users with varying levels of technical experience.

Ideal uses and environments

This hard drive is well suited for small offices that need reliable storage for collaborative projects and automated backups. It also fits home environments where centralizing media such as family photos, 4K videos, and music collections is important. Its balance of capacity, speed, and power efficiency makes it a practical choice for anyone looking to maintain or expand their TeraStation storage without interruption.

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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