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Silver 2.5 inch bare laptop hard drive with circuit board visible

Seagate

Seagate Momentus ST9750420AS 750GB 7200 RPM 16MB SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-T6YC-PXWDR MPN ST9750420AS

750 GB 2.5-inch laptop hard drive spinning at 7200 RPM with 16 MB cache and SATA 3.0 Gb/s interface

  • Total capacity750 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 750 GB capacity stores large media libraries
  • 7200 RPM spindle speeds up file access
  • 16 MB cache buffers frequent read requests
  • G-Force Protection parks heads during free-fall drops
  • 5 mm height fits standard 2.5 inch bays

Capacity and interface

The Seagate Momentus ST9750420AS is a 2.5 inch laptop internal hard drive with a 750GB capacity. It connects through a SATA 3.0Gb/s interface and spins at 7200 RPM with a 16MB cache. The drive measures 9.5mm in height and fits standard notebook bays.

Upgraders and server use

This drive suits users replacing a failed laptop drive or adding storage to a compatible server chassis. Buyers who need a solid-state drive or a larger 2.5 inch capacity should look at other options. The bare-drive packaging means no cables or mounting hardware are included.

Sustained workload behaviour

Under continuous operation the 7200 RPM spindle maintains consistent throughput for sequential reads and writes. G-Force Protection parks the heads during sudden motion to protect stored data. SmartAlign technology handles 4K sector alignment without extra software. The drive is warranted by the seller for one year.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $170.99
Pricier than about 81% of the 645 comparable items (median $66.99).
Total capacity 750 GB
Higher than about 80% of the 419 comparable items (median 320 GB).
Price per TB $227.99 per TB
Typical for this category: the median of 416 items is $233.48 per TB.

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Specifications

Product
Brand nameSeagate
Product lineMomentus
Model nameST9750420AS
Total capacity750 GB
Recommended useIdeal for Servers
Performance
Rotational speed7,200 RPM
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height9.5 mm
Maximum width69.85 mm
Maximum length100.35 mm
Shipping weight0.10 kg
Package size102 × 71 × 6 mm

Questions about this item

Will the 2.5" 9.5mm form factor fit my laptop's drive bay?

The drive measures 2.5 inches wide with a 9.5mm height, matching the standard laptop drive bay dimensions of 100.35mm length and 69.85mm width.

Does the SATA 3.0Gb/s interface work with my older SATA 1.5Gb/s controller?

Yes, the SATA 3.0Gb/s interface is backward compatible and will operate at the 1.5Gb/s speed of your older controller.

How can I verify the 7200 RPM drive is healthy after installation?

Run a SMART self-test and check for reallocated sectors; the drive was erased to DoD 5220.22 M standard and tested good with up to 25 bad sectors noted.

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