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Silver 2.5 inch laptop hard drive with green circuit board visible on underside

Toshiba

Toshiba MK3255GSX 320GB 5400 RPM 8MB SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-1E1Z-CD5S4

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

  • PackagingRetail
  • InterfaceSATA 3.0Gb/s
  • Capacity320GB
  • Cache8MB
  • Average Latency5.55ms
  • RPM5400 RPM
  • 320 GB capacity stores documents and media
  • 5400 RPM spindle delivers steady throughput for daily tasks
  • 8 MB cache buffers bursts for smoother responsiveness
  • SATA 3.0 Gb/s interface fits standard laptop bays
  • 5 mm slim profile suits thin-and-light notebooks

Purpose and audience

The Toshiba MK3255GSX is a 2.5-inch laptop hard drive built for users who need a direct replacement drive in an older notebook or external enclosure. Its SATA 3.0Gb/s interface and 9.5mm height match the mechanical and electrical requirements of many legacy systems. It is not suited for buyers who want faster access times or higher capacities than 320GB.

Deciding specification

The 5400 RPM spindle speed and 8MB cache define the drive's throughput and latency profile, with an average latency of 5.55ms. This combination determines whether the drive meets the performance needs of a specific workload or operating system.

Thermals noise and power

Super-quiet Seek Technology and an eco-friendly low-power design keep acoustic output and heat low during typical operation. The lightweight 2.5-inch form factor draws minimal current from the laptop's power budget.

商品特色

  • 320 GB capacity stores documents and media
  • 5400 RPM spindle delivers steady throughput for daily tasks
  • 8 MB cache buffers bursts for smoother responsiveness
  • SATA 3.0 Gb/s interface fits standard laptop bays
  • 5 mm slim profile suits thin-and-light notebooks

商品規格

BrandTOSHIBA
ModelMK3255GSX (HDD2H27)
PackagingRetail
InterfaceSATA 3.0Gb/s
Capacity320GB
Cache8MB
Average Latency5.55ms
RPM5400 RPM
FeaturesLight-weight, Standard 9.5mm-High Design
Super-quiet Seek Technology
Eco-friendly Design in Materials and Low Power Consumption
Form Factor2.5"

商品問答

What does the 5400 RPM speed mean for everyday laptop use?

The drive spins at 5400 RPM with an average latency of 5.55ms, giving typical mechanical-drive responsiveness for office tasks and media storage.

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

The SATA 3.0Gb/s link caps maximum throughput at 3.0 Gb/s, so sustained reads and writes cannot exceed that bandwidth.

Will the 9.5mm height fit my 2.5-inch drive bay?

Yes, the standard 9.5mm-high 2.5-inch form factor matches the common laptop internal drive bay.

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