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Silver rectangular 2.5 inch SATA laptop hard drive bare unit

Toshiba

Toshiba MK1059GSM 1TB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-G5E4-4VM2K MPN MK1059GSM

Stores 1 TB on a 5400 RPM 2.5 inch SATA drive with 8 MB cache and 12 ms seek time

  • Total capacity1 TB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Rotational speed5,400 RPM
  • Cache memory8 MB
  • 1TB capacity stores large media libraries and backups
  • 5400 RPM spindle speed balances performance with low power draw
  • 8MB cache buffer smooths burst transfers for everyday tasks
  • SATA 3.0Gb/s interface fits standard 2.5″ laptop bays
  • 5mm z-height matches common drive-cage clearances

Right part for a 2.5" SATA bay

This Toshiba MK1059GSM is a 1TB mechanical hard drive built for a standard 2.5-inch SATA bay in a laptop or compatible enclosure. It spins at 5400 RPM with an 8MB cache buffer and connects through a SATA 3.0Gb/s interface. The bare-drive unit arrives new and ready for installation.

Interface decides fit

The single specification that determines compatibility is the SATA 3.0Gb/s interface, also described as Serial ATA Revision 2.6. If the host system provides a SATA data and power connector for a 2.5-inch drive, this unit will communicate correctly; any other interface type will not work.

One terabyte of magnetic storage

The 1TB capacity handles operating-system files, applications and large media libraries in a single volume. Sequential throughput is limited by the 5400 RPM spindle speed and the 3.0Gb/s link, so sustained transfers run well below modern SSD speeds. Random access averages 12ms seek time plus 5.55ms latency, which is adequate for bulk storage but slow for heavy multi-tasking workloads.

How it compares

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

Price $105.99
Pricier than about 68% 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 $105.99 per TB
Cheaper than about 79% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameTOSHIBA
Product lineMKxx59GSM Series
Model nameMK1059GSM
Total capacity1 TB
Performance
Rotational speed5,400 RPM
Average seek time12 ms
Mean latency5.55 ms
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height12.5 mm
Maximum width69.85 mm
Maximum length100.0 mm
Shipping weight0.50 kg
Package size102 × 83 × 13 mm

Questions about this item

Will the 1 TB capacity be fully usable once the drive is installed in a laptop?

Yes, the drive reports 1 TB of storage capacity and is ready for partitioning after installation.

What does the SATA 3.0 Gb/s interface limit in practice?

The SATA 3.0 Gb/s interface caps the maximum transfer rate at 3.0 Gb/s, matching the Serial ATA Revision 2.6 specification.

Does the 12.5 mm height fit standard 2.5-inch laptop bays?

The drive measures 12.5 mm tall, 69.85 mm wide and 100.0 mm long, matching the 2.5-inch form factor used in most laptop bays.

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