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Silver 2.5 inch bare SATA hard drive, 7mm thin

Seagate

Seagate ST1000LM048 BarraCuda 1TB 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" 7mm laptop hard drive

SKU CH-48XH-MY0BG MPN ST1000LM048

A 1TB 2.5-inch 7mm laptop hard drive with 128MB cache and 5400 RPM for daily computing

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity1TB
  • Cache128MB
  • RPM5400 RPM
  • FeaturesBroadest 2.5-inch hard drive portfolio with up to 5TB capaci

Capacity 1TB

Struck-through versions exist but are not stocked here.

  • 1TB capacity for daily computing files
  • 128MB cache helps speed up frequent data access
  • 7mm slim profile fits thin and light laptops
  • Up to 140MB/s transfer rates for snappier file moves
  • SATA 6.0Gb/s interface for broad system compatibility

Product identity

This is a 2.5-inch Seagate BarraCuda laptop hard drive with 1TB capacity, 5400 RPM spindle speed and 128MB cache. It connects through a SATA 6.0Gb/s interface and fits the 7mm z-height used by thin-and-light notebooks. The drive is supplied new in bare-drive packaging for system builders and upgrade installers.

Upgrade context

It replaces an older 2.5-inch SATA hard drive of lower capacity or smaller cache, and the jump is worthwhile when a notebook or compact desktop needs more storage without moving to a thicker 15mm bay. The 140MB/s peak data rate improves file-transfer responsiveness over slower legacy drives. Buyers who want solid-state speed or capacities above 2TB should look elsewhere.

Compatibility check

Verify the host system accepts a 2.5-inch SATA drive with a 7mm profile and that a SATA data plus power connector is available. Confirm the BIOS or UEFI recognises 1TB volumes and that no hardware RAID controller imposes a lower capacity limit. The drive is not formatted, partitioned or allocated, so the operating system must initialise it on first boot.

Highlights

  • 1TB capacity for daily computing files
  • 128MB cache helps speed up frequent data access
  • 7mm slim profile fits thin and light laptops
  • Up to 140MB/s transfer rates for snappier file moves
  • SATA 6.0Gb/s interface for broad system compatibility

Specifications

BrandSeagate
SeriesBarraCuda
ModelST1000LM048
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity1TB
Cache128MB
RPM5400 RPM
FeaturesBroadest 2.5-inch hard drive portfolio with up to 5TB capacity and both 7mm and 15mm form factors suitable for a variety of compute applications.
Thinnest and lightest 2.5-inch hard drive with up to 2TB storage in a 7mm z-height, providing seamless upgrades of thin and light laptops and smaller form factor systems.
Fast data rates of up to 140MB/s enables superior PC end-user experience and snappier file transfers.
2.5-inch, 15mm z-height hard drives provide 3TB to 5TB in capacity, offering the highest-capacity 2.5-inch hard drives available for external or all-in-one storage.
15mm z
UsageFor Daily Computing
Form Factor2.5"
Height (maximum)7mm
Width (maximum)69.85mm
Length (maximum)100.35mm
Shipping weight0.23 kg
Package size102 × 76 × 5 mm

Other versions of this model

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Questions about this item

Will the 7mm 2.5" form factor fit my laptop's drive bay?

The drive measures 7mm high, 69.85mm wide and 100.35mm long, matching the standard 2.5-inch 7mm bay used in most thin-and-light laptops.

What is the correct way to connect the SATA 6.0Gb/s interface during installation?

Align the L-shaped SATA data and power connectors, press firmly until they click, then secure the drive with the laptop's mounting screws or caddy; forgetting to latch the cables is the common mistake.

How often should I check the 128MB cache and 5400 RPM mechanism for long-term health?

Run the manufacturer's diagnostic tool every few months to scan for bad sectors — up to 25 may appear over time — and replace the drive if reallocated sector counts rise.

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