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Silver rectangular 2.5 inch bare SATA hard drive with green circuit board visible

Toshiba

Toshiba MK3276GSX 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-P909-AKREY MPN MK3276GSX

A 2.5" SATA laptop drive with 320GB capacity, 5400 RPM speed and 8MB cache

  • Total capacity320 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory8 MB
  • Average seek time12 ms
  • 320 GB capacity stores large media libraries and backups
  • 5400 RPM spindle speed balances performance with quiet operation
  • 8 MB cache accelerates frequent read and write requests
  • SATA 3.0 Gb/s interface fits standard laptop drive bays
  • 5 mm height matches most 2.5 inch notebook slots

Capacity and interface

The Toshiba MK3276GSX is a 320GB 2.5-inch internal hard drive with a SATA 3.0Gb/s interface. It spins at 5400 RPM and provides an 8MB cache for everyday notebook storage.

Suited for upgrades and replacements

This drive fits laptops that accept a 9.5mm-high SATA device and need a straightforward capacity increase. It is not intended for systems that require a faster spindle speed, a larger cache or a higher-throughput interface.

Sustained workload behaviour

Under continuous use the 5400 RPM spindle and 12ms average seek time deliver steady, predictable throughput for sequential reads and writes. The mechanical design maintains consistent performance without the thermal throttling seen in faster drives.

How it compares

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

Price $76.99
Pricier than about 55% of the 645 comparable items (median $66.99).
Total capacity 320 GB
Typical for this category: the median of 419 items is 320 GB.
Price per TB $240.59 per TB
Typical for this category: the median of 416 items is $233.48 per TB.

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Specifications

Product
Brand nameTOSHIBA
Model nameMK3276GSX
Total capacity320 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)
Max height9.5 mm
Maximum width69.75 mm
Maximum length100.3 mm
Shipping weight0.09 kg
Package size102 × 70 × 13 mm

Questions about this item

Does my laptop need a 2.5 inch 9.5 mm drive bay for this MK3276GSX?

Yes, the drive is a 2.5 inch form factor with a maximum height of 9.5 mm, so the bay must accept those dimensions.

Will the SATA 3.0Gb/s interface work with my older SATA 1.5Gb/s controller?

The drive uses a SATA 3.0Gb/s interface which is backward compatible with SATA 1.5Gb/s controllers, though it will run at the lower speed.

How can I confirm the drive is recognised at its full 320GB capacity after installation?

Check the BIOS or operating system disk utility; it should report approximately 320GB and show the model MK3276GSX with a 5400 RPM speed.

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