Buffalo SATA 6Gb/s 4TB Replacement Hard Drive for TeraStation

The Buffalo OP-HD4.0N is a 4TB replacement hard drive designed to slot straight into a compatible TeraStation network storage device. It uses a 3.5 inch form factor and a SATA 6Gb/s connection, so it matches the performance and physical requirements of the original drives that ship with the system.

This model is factory qualified for TeraStation units such as the 3210DN, 3410DN, 3410RN, 5210DN, 5410DN, 5410RN and 5810DN. Because the firmware is already aligned with these enclosures, the drive is detected immediately after installation, letting you rebuild arrays or expand storage without additional configuration.

A hot swap capability allows you to replace a failed drive while the NAS remains online. That means employees continue to reach shared files, media servers keep streaming and scheduled backups run on time. Installation is straightforward: open the drive tray, slide the new drive into place and let the TeraStation handle the rest.

With 4TB of space, the drive can store large creative projects, surveillance archives or consolidated office documents. A small business that needs room for growing client folders, a content creator who manages raw video footage or a home user archiving a photo library can all benefit from the additional capacity and dependable performance.

• 4TB capacity handles extensive backups, media collections and business data
• Qualified for TeraStation models 3210DN, 3410DN, 3410RN, 5210DN, 5410DN, 5410RN and 5810DN
• 3.5 inch drive that connects through a SATA 6Gb/s interface for efficient data transfer
• Hot swap support lets you replace a drive without shutting down the NAS
• Buffalo firmware alignment ensures immediate recognition and reliable RAID rebuilds
• Tool free installation keeps maintenance quick and simple
• Weight 0.74 kg, dimensions 14.7 x 10.2 x 2.5 cm