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Small silver rectangular 1.8 inch hard drive with circuit board visible

Toshiba

Toshiba MK2533GSG 250GB 5400 RPM 16MB 1.8" internal hard drive

SKU CH-KMM5-Z7KVS MPN MK2533GSG

A 1.8-inch 250 GB internal hard drive spinning at 5400 RPM with 16 MB cache and a 15 ms average seek time

  • Total capacity250 GB
  • Interface typeSerial ATA Revision 3.0
  • Form factor1.8 in (4.57 cm)
  • Rotational speed5,400 RPM
  • Cache memory16 MB
  • Average seek time15 ms
  • 250 GB capacity stores large media libraries
  • 5400 RPM spindle delivers steady throughput for everyday tasks
  • 16 MB cache buffers bursts for smoother access
  • Serial ATA Revision 3.0 interface connects to compatible bays
  • 8 inch form factor fits slim drive slots

1.8-inch 250 GB internal drive

The Toshiba MK2533GSG is a 1.8-inch internal hard drive with a 250 GB capacity, 5400 RPM spindle speed and 16 MB cache. It connects through a Serial ATA Revision 3.0 interface and operates on a 3.3 V supply. The drive is supplied new and meets RoHS compliance requirements.

Suits space-constrained legacy systems

Builders working on older ultraportable laptops, compact embedded appliances or industrial equipment that require a 1.8-inch form factor will find this drive a direct fit. Systems that need higher throughput, larger capacities or a 2.5-inch or 3.5-inch form factor should consider other options.

5400 RPM spindle speed decides fit

The 5400 RPM rotation rate determines the drive’s 15 ms average seek time, 5.6 ms latency and 3 Gb/sec host transfer rate. If the application demands faster random access or sustained throughput, a higher spindle speed or solid-state alternative would be required.

How it compares

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

Price $116.99
Typical for this category: the median of 4,938 items is $107.99.
Total capacity 250 GB
Lower than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $467.96 per TB
Pricier than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameTOSHIBA
Product lineMKxx33GSG Series
Model nameMK2533GSG
Total capacity250 GB
Performance
Rotational speed5,400 RPM
Average seek time15 ms
Mean latency5.6 ms
Storage
Cache memory16 MB
Ports & slots
Interface typeSerial ATA Revision 3.0
Size & build
Form factor1.8 in (4.57 cm)
Shipping weight0.91 kg
Package size152 × 127 × 25 mm

Questions about this item

What physical space is needed to fit the 1.8 inch 54.0 mm by 78.5 mm by 8.0 mm drive?

The drive measures 54.0 mm wide, 78.5 mm deep and 8.0 mm high, so the bay or adapter must provide at least those clearances.

Which connectors must be aligned when installing the Serial ATA Revision 3.0 drive?

Match the drive's Serial ATA Revision 3.0 data and power connectors to the host ports, press straight in until fully seated, then secure the 62 g unit with the correct screws.

When should the drive be replaced based on its operating temperature range?

Replace the drive if it consistently runs outside the 5° to 65°C operating range or if SMART data shows reallocated sectors.

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