Buffalo OP-HD20.0H2U-5Y

Overview

The Buffalo OP-HD20.0H2U-5Y is a 20-terabyte hard drive designed as a direct replacement or capacity upgrade for the TeraStation 51210RH network storage system. It delivers a transfer rate of 600 megabytes per second, enabling fast access to large datasets and efficient backup processes. This drive fits into a standard 3.5-inch bay and supports hot-swap functionality, allowing seamless maintenance without interrupting system operation.

Key features

• Large 20TB capacity accommodates extensive data storage needs, ideal for archiving high-resolution media or long-term surveillance footage.
• Engineered specifically for enterprise workloads, ensuring reliable performance in continuous operation environments.
• Hot-swappable design allows administrators to replace or add drives without shutting down the TeraStation, minimizing downtime.
• Pre-configured for easy installation with a simple tray design that matches original equipment dimensions for optimal airflow and cable management.
• Backed by a five-year manufacturer warranty, providing confidence in durability and long-term use.

Key specs

• Capacity: 20 terabytes
• Form factor: 3.5-inch
• Transfer rate: 600 megabytes per second
• Dimensions: 6.8 x 4.2 x 1.1 inches
• Compatibility: Buffalo TeraStation 51210RH
• Warranty: 5 years

Connectivity and compatibility

This drive is purpose-built for Buffalo TeraStation 51210RH enclosures, ensuring seamless integration and optimal performance. Its standard 3.5-inch form factor fits perfectly into existing bays, maintaining the original airflow and cable routing designed by Buffalo. The hot-swap capability supports quick replacement or upgrades without disrupting network storage operations.

Ideal uses and environments

The OP-HD20.0H2U-5Y is well suited to environments that require large, reliable storage with minimal downtime. Creative studios managing vast media libraries, offices consolidating shared documents, and managed service providers handling client backups will find this drive meets their capacity and performance demands. It performs reliably in temperature-controlled racks or small business server closets, supporting continuous operation and quick recovery when needed.

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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