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Silver 2.5 inch internal hard drive with SATA connector

Toshiba

Toshiba MK2556GSY 250GB 7200RPM 16MB 2.5" SATA 3.0Gb/s internal hard drive

SKU CH-Q5N5-884W0 MPN MK2556GSY

A 250 GB 2.5" SATA drive spinning at 7200 RPM with 16 MB cache for faster notebook or desktop storage

  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Rotational speed7,200 RPM
  • Cache memory16 MB
  • Average seek time11 ms
  • Mean write time12 ms
  • 7200 RPM spindle speed accelerates data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface fits existing laptop bays
  • 11 ms average seek time reduces latency on random reads
  • 5 inch form factor installs in standard notebook slots

Drive purpose and audience

The Toshiba MK2556GSY is a 250 GB 2.5-inch internal hard drive spinning at 7200 RPM with a 16 MB cache and a SATA 3.0Gb/s interface. It is intended for notebooks or compact desktops that require a standard mechanical drive for everyday storage.

Who it suits and who it does not

This drive suits users upgrading a laptop or small-form-factor PC that accepts a 2.5-inch SATA drive and need 250 GB of capacity at 7200 RPM. It does not suit buyers who want more storage, faster solid-state speeds, or a 3.5-inch desktop form factor.

Deciding specification

The 7200 RPM spindle speed combined with the SATA 3.0Gb/s interface determines whether this drive matches the performance and connectivity requirements of the target system.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $58.99
Cheaper than about 71% of the 4,938 comparable items (median $107.99).

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Specifications

Product
Brand nameTOSHIBA
Model nameMK2556GSY
Performance
Rotational speed7,200 RPM
Average seek time11 ms
Mean write time12 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.09 kg
Package size102 × 86 × 23 mm

Questions about this item

What are the physical dimensions and interface needed to fit the MK2556GSY in a laptop bay?

The drive uses a 2.5 inch form factor and connects through a SATA 3.0Gb/s interface, matching standard notebook drive bays.

How is the MK2556GSY installed, and what step is often missed?

Slide the drive into the 2.5 inch bay, secure it with the caddy screws, then attach both the SATA data and power connectors; the step often missed is fastening the caddy screws before closing the chassis.

What maintenance or replacement will the MK2556GSY need over its lifespan?

As a mechanical 7200 RPM drive with 11ms average seek and 12ms average write times, it may eventually require replacement if bearing noise increases or read errors appear; no user-serviceable parts exist inside.

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