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Silver 3.5 inch bare SATA hard drive with green circuit board visible

Seagate

Seagate ST3750640NS 750GB 7200 RPM 16MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-13YR-GG71W MPN ST3750640NS

A 750 GB 3.5" desktop drive spinning at 7200 RPM with 16 MB cache and a SATA 3.0 Gb/s interface

  • Total capacity750 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 7200 RPM spindle speed enables fast data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface connects to standard desktop ports
  • 750 GB capacity stores large archives and media libraries
  • 5 inch form factor fits ordinary drive bays

Enterprise 750 GB SATA drive

The Seagate BarraCuda ES ST3750640NS is a 750 GB 3.5 inch internal hard drive built for 24 x 7 operation in multi-drive environments. It spins at 7200 RPM with a 16 MB cache and connects through a SATA 3.0 Gb/s interface.

Bare drive with DoD erase

The unit ships as a bare drive without cables, brackets or software. Each drive has been erased to DoD 5220.22 M compliance and tested for function, though up to 25 bad sectors may be present and the drive is not formatted or partitioned.

3.5 inch form factor for desktop bays

The standard 3.5 inch size fits directly into desktop drive bays and backplanes using the SATA data and power connectors. Manufacturer warranty has ended; the seller provides a one year warranty instead. Labels or cosmetics may differ from the product image.

How it compares

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

Price $75.99
Cheaper than about 61% of the 4,938 comparable items (median $107.99).
Total capacity 750 GB
Lower than about 70% of the 2,372 comparable items (median 2 TB).
Price per TB $101.32 per TB
Pricier than about 63% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineBarraCuda ES
Model nameST3750640NS
Total capacity750 GB
Performance
Rotational speed7,200 RPM
Average seek time8.5 ms
Mean write time9.5 ms
Mean latency4.16 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.36 kg
Package size147 × 102 × 25 mm

Questions about this item

What maintenance or replacement should I expect for the 750GB Seagate Barracuda ES ST3750640NS drive?

The drive is sold as used and tested to DoD 5220.22 M erasure standards. The supplier notes it may have up to 25 bad sectors and cosmetic markings. No manufacturer warranty remains; plan to replace the unit if sector count grows or SMART errors appear.

What limit appears first when the ST3750640NS runs sustained workloads at 7200 RPM?

The SATA 3.0Gb/s interface caps burst throughput at 3.0 Gb/s, and the 16MB cache fills quickly during long writes. Mechanical latency of 4.16ms and average write time of 9.5ms become the bottleneck before thermal limits are reached.

How much noise, heat and power does the 3.5" Barracuda ES produce when running all day?

As a 7200 RPM enterprise drive, it generates typical mechanical seek noise and measurable heat during continuous operation. The SATA 3.0Gb/s interface draws standard 3.5" drive power; expect audible clicks during seeks and a warm chassis after extended 24×7 use.

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