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Silver rectangular 2.5 inch 7mm laptop hard drive

Seagate

Seagate ST1000LM035 1TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" 7mm laptop hard drive

SKU CH-T1CQ-J5H38 MPN ST1000LM035

A 1 TB laptop hard drive with 128 MB cache, 5400 RPM speed and a slim 7 mm SATA 6.0 Gb/s form factor

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Cache memory128 MB
  • Average seek time13 ms
  • Rotational speed5,400 RPM

Capacity 1TB

  • 1 TB capacity stores up to 200,000 photos
  • 7 mm thin profile fits slim laptops
  • 128 MB cache speeds up data access
  • 5400 RPM spindle balances performance and power
  • SATA 6.0 Gb/s interface enables easy integration

Purpose-built laptop storage

The Seagate ST1000LM035 is a 1TB 2.5-inch internal hard drive built for notebooks that accept a 7mm SATA device. It spins at 5400 RPM with a 128MB cache and a 6.0Gb/s SATA interface, delivering 1TB of mechanical storage in a thin, light package.

Ideal for capacity-focused upgrades

This drive suits owners of compatible laptops or external enclosures who need maximum terabytes per millimetre at low cost. It is not for users who require the low latency and high throughput of solid-state storage, nor for systems limited to thinner 5mm bays or proprietary connectors.

Drop-in SATA integration

The standard SATA 6.0Gb/s interface allows direct replacement of an existing 2.5-inch drive without adapters or firmware changes. Its 7mm height and light weight free up space and mass budget in slim chassis, while the 128MB cache helps sustain sequential transfers for media libraries and backups.

How it compares

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

Price $43.99
Cheaper than about 75% of the 645 comparable items (median $66.99).
Total capacity 1 TB
Higher than about 90% of the 419 comparable items (median 320 GB).
Price per TB $43.99 per TB
Cheaper than about 94% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Model nameST1000LM035
Total capacity1 TB
Performance
Average seek time13 ms
Rotational speed5,400 RPM
Storage
Cache memory128 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height7 mm
Maximum width69.85 mm
Maximum length100.35 mm
Shipping weight0.16 kg
Package size218 × 135 × 44 mm

Other versions of this model

1 more in the same range

Questions about this item

Does my laptop need a 2.5-inch 7mm SATA drive bay for this ST1000LM035?

Yes, the drive uses a standard 2.5-inch form factor with a 7mm height and a SATA 6.0Gb/s interface, so the laptop must provide a matching drive bay and SATA connector.

Will this 5400 RPM drive work alongside an older SATA 3.0Gb/s controller in my laptop?

The SATA 6.0Gb/s interface is backward compatible with SATA 3.0Gb/s controllers, so the drive will function at the controller's maximum speed.

How can I verify the 128MB cache and 5400 RPM speed are active after installation?

Use a system information tool such as CrystalDiskInfo or the drive properties in Windows Device Manager to confirm the reported cache size and rotational speed.

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