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Silver 2.5 inch bare SATA hard drive, model MK1246GSX

Toshiba

Toshiba MK1246GSX 120GB 5400 RPM 8MB SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-6YRF-2EV0D MPN MK1246GSX

A 120 GB 2.5 inch laptop hard drive spinning at 5400 RPM with 8 MB cache and a SATA 3.0 Gb/s interface

  • Total capacity120 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory8 MB
  • Average seek time12 ms
  • 120 GB capacity stores documents and media
  • 5400 RPM spindle delivers quiet operation
  • 8 MB cache speeds up frequent file access
  • SATA 3.0 Gb/s interface fits standard laptop bays
  • 300000-hour MTTF rating indicates long-term reliability

Toshiba 120GB 2.5-inch SATA laptop drive

The Toshiba MK1246GSX is a 120GB internal hard drive built for 2.5-inch laptop bays. It connects through a SATA 3.0Gb/s interface and spins at 5400 RPM with an 8MB cache. This bare drive suits users replacing a failed drive or adding secondary storage to a compatible notebook.

Sustained workload behaviour

A 5400 RPM spindle and 8MB buffer deliver steady throughput for everyday file access and media playback. The manufacturer quotes a 759MB/sec media transfer rate and a 300000-hour MTTF rating for long-term operation. Mechanical latency remains at a 12ms average seek time during continuous mixed read and write activity.

Pre-order checklist

Verify that your laptop accepts a 2.5-inch SATA drive with a 3.0Gb/s link and has a free drive bay or caddy. Confirm the system BIOS recognises 120GB capacities without a firmware update. Buyers needing faster random access or higher capacity should consider alternative drive types.

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 120 GB
Lower than about 84% of the 419 comparable items (median 320 GB).
Price per TB $366.58 per TB
Pricier than about 68% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameTOSHIBA
Model nameMK1246GSX
Total capacity120 GB
Performance
Average seek time12 ms
Rotational speed5,400 RPM
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.45 kg
Package size152 × 102 × 51 mm

Questions about this item

How much power and heat does the 5400 RPM MK1246GSX produce during continuous use?

The 5400 RPM spindle speed and 8MB cache keep power draw and heat output low, making the 2.5" drive suitable for all-day operation in a laptop chassis.

What laptop interface and bay size are required to install this 120GB SATA drive?

You need a 2.5" drive bay and a SATA 3.0Gb/s connector; the bare drive includes no caddy, bracket or mounting screws.

Will the SATA 3.0Gb/s interface limit performance on an older laptop that only supports SATA 1.5Gb/s?

The drive is backward compatible with SATA 1.5Gb/s controllers, though the 759MB/s media transfer rate will be capped at the older bus speed.

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