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Silver 3.5 inch internal hard drive rectangular metal casing

Buffalo Technology

Buffalo Technology OP-HD3.0T/4K-3Y 3TB SATA 3.5" internal hard drive

SKU CH-1S5E-X81V0 MPN OP-HD3.0T/4K-3Y

3 TB internal hard drive with a SATA 3.0 Gbit/s interface, 3.5 inch form factor and three-year warranty for Buffalo TeraStation arrays

  • Total capacity3 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Key featuresCompatibility: Buffalo Storage Arrays: TeraStation ES TeraSt
  • 3 TB capacity for large NAS storage arrays
  • SATA 3.0 Gbit/s interface delivers 384 MB/s transfer rate
  • Validated for TeraStation ES, III, Pro and Pro WSS models
  • 5-inch form factor with 1.2-inch height fits standard bays
  • RoHS certified and backed by a three-year limited warranty

TeraStation 3 TB SATA drive

This Buffalo OP-HD3.0T/4K-3Y is a 3 TB internal hard drive built for 3.5-inch bays. It connects through a SATA 3.0Gb/s interface and uses 4K sector formatting. The drive is qualified for Buffalo TeraStation ES, III, III iSCSI, Pro and Pro WSS arrays.

For RAID replacements in listed arrays

It suits administrators who need a direct replacement or capacity upgrade inside a compatible TeraStation. Buyers who want a standalone desktop drive for a non-TeraStation system should look at something else, as the firmware is tuned for array use.

SATA 3.0Gb/s interface

The drive communicates over a SATA 300 connection with a maximum external transfer rate of 384 MB/s. This single interface specification determines whether the drive will install and operate in the target enclosure.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $176.99
Pricier than about 65% of the 4,938 comparable items (median $107.99).
Total capacity 3 TB
Higher than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $59.00 per TB
Typical for this category: the median of 2,365 items is $62.21 per TB.

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Specifications

Product
Brand nameBUFFALO
Model nameOP-HD3.0T/4K-3Y
Total capacity3 TB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size178 × 127 × 51 mm

Questions about this item

Does this drive need a SATA 3.0Gb/s port on the motherboard or RAID controller to work?

Yes, it connects through a standard 7-pin SATA interface running at 3.0Gb/s, so the host must provide a matching SATA port.

Can I mix this 3 TB drive with smaller drives already in my TeraStation RAID array?

The drive will appear at the size of the smallest drive in the array, so it can replace a failed smaller unit but will not add extra usable capacity.

How can I verify the drive is transferring at its rated 384 MB/s after installation?

Run a sequential read benchmark such as CrystalDiskMark or HD Tune; a healthy drive on a 3 Gbit/s link should show sustained speeds near 384 MB/s.

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