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Silver 2.5 inch bare laptop hard drive with green circuit board visible

Seagate

Seagate Momentus 7200.4 ST9500423AS 500GB 7200 RPM 16MB SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-695S-BMBMV MPN ST9500423AS

A 500 GB 2.5 inch 7200 RPM SATA laptop hard drive with 16 MB cache and G-Force Protection

  • Total capacity500 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • 500 GB capacity stores large media libraries
  • 7200 RPM spindle speed accelerates application loading
  • 16 MB cache buffers frequent read and write operations
  • SATA 3.0 Gb/s interface fits most 2.5 inch laptop bays
  • G-Force Protection technology safeguards data during drops

Seagate Momentus 7200.4 500GB 2.5" SATA Laptop Drive

This Seagate Momentus 7200.4 internal hard drive provides 500GB of storage in a standard 2.5 inch form factor. It connects via a SATA 3.0Gb/s interface and spins at 7200 RPM with a 16MB cache. The drive measures 9.5mm in height, making it compatible with most laptop bays designed for this thickness. It is supplied as a bare drive without cables or brackets.

Suits Laptop Upgrades Needing 7200 RPM Performance

This drive suits users replacing a failed laptop drive or upgrading capacity where a 7200 RPM mechanical drive is required. The G-Force Protection technology helps protect data if the laptop is dropped. Buyers needing solid-state speeds, larger capacities, or a manufacturer warranty should look elsewhere. The product is end-of-sale and carries no original manufacturer warranty; a one-year seller warranty applies instead.

9.5mm Height Determines Laptop Bay Fit

The critical specification is the 9.5mm maximum height, which dictates whether this drive fits a specific laptop drive bay. Many modern ultra-thin laptops require 7mm drives and will not accept this unit. Verify the bay clearance before purchase. The SATA 3.0Gb/s interface and 2.5 inch form factor are standard, but the physical height is the deciding constraint.

How it compares

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

Price $123.99
Pricier than about 72% of the 645 comparable items (median $66.99).
Total capacity 500 GB
Higher than about 60% of the 419 comparable items (median 320 GB).
Price per TB $247.98 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 7200.4
Model nameST9500423AS
Total capacity500 GB
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 weight0.11 kg
Package size102 × 70 × 13 mm

Questions about this item

Does the bare drive include mounting brackets or cables, or do I need to buy a SATA data cable separately?

The drive ships as a bare unit without brackets, screws or cables; you will need a SATA data cable and any mounting hardware your laptop requires.

Is the 500 GB 7200.4 model the only capacity in this series, or are other sizes available?

This listing is for the 500 GB ST9500423AS; other capacities in the Momentus 7200.4 range are not covered by this product page.

How does the 7200 RPM speed and 16 MB cache affect everyday laptop performance?

The 7200 RPM spindle and 16 MB cache provide quicker file access and smoother multitasking compared with slower notebook drives.

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