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Silver 2.5 inch laptop hard drive, 7mm thin profile

Seagate

Seagate ST320LT012 320GB 5400 RPM 16MB SATA 3.0Gb/s 2.5" 7mm laptop hard drive

SKU CH-MR5K-YPJCF MPN ST320LT012

A 320 GB 2.5-inch laptop hard drive with a 7 mm height for slim chassis, 5400 RPM speed and 16 MB cache

  • Total capacity320 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory16 MB
  • Rotational speed5,400 RPM

Capacity 320GB

RPM 5400 RPM

  • 7 mm height fits slim laptops without adapters
  • 320 GB capacity stores everyday files and applications
  • 5400 RPM spindle balances speed with quiet operation
  • 16 MB cache smooths repeated data access
  • SATA 3.0 Gb/s interface connects to standard notebook ports

Thin 7 mm laptop drive

The Seagate Momentus Thin ST320LT012 is a 320 GB internal hard drive built for laptops that require a 7 mm z-height. It spins at 5400 RPM with a 16 MB cache and connects via a SATA 3.0 Gb/s interface. The bare drive measures 70.10 mm wide by 100.55 mm long.

Suits slim chassis upgrades

This drive fits ultra-thin notebooks and 2.5 inch bays that accept a 7 mm profile; it is also compatible with standard 9.5 mm bays. Buyers needing more capacity than 320 GB or faster access times than a 5400 RPM mechanical drive provides should consider other options.

SATA 3.0 Gb/s interface

The drive uses a SATA 3.0 Gb/s connection, the single specification that determines whether it will work in a given laptop..verify the host system supports this interface before purchase.

How it compares

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

Price $51.99
Cheaper than about 65% of the 645 comparable items (median $66.99).
Total capacity 320 GB
Typical for this category: the median of 419 items is 320 GB.
Price per TB $162.47 per TB
Cheaper than about 64% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Product lineMomentus Thin
Model nameST320LT012
Total capacity320 GB
Performance
Rotational speed5,400 RPM
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height7 mm
Maximum width70.1 mm
Maximum length100.55 mm
Overall height30 day warranty
Shipping weight0.23 kg
Package size226 × 155 × 76 mm
More details
Variant30 day warranty

Other versions of this model

4 more in the same range

Questions about this item

How do I install the ST320LT012 in a laptop bay designed for a 9.5 mm drive, and what step is often missed?

The 7.0 mm height drive fits the wider bay, but you must add the supplied spacer or bracket so the SATA connector seats firmly and the drive does not shift.

What maintenance or replacement will the ST320LT012 need over its service life?

No scheduled maintenance is required; the drive is sealed. Plan to replace the unit once SMART attributes report reallocated sectors or the 320 GB capacity no longer meets your storage needs.

What limit appears first when the ST320LT012 is used continuously at 5400 RPM?

Sustained throughput is capped by the SATA 3.0 Gb/s interface and the 16 MB cache, so long sequential transfers will hit the bus ceiling before the platters reach their maximum speed.

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