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Silver 2.5 inch laptop hard drive bare drive

HGST

HGST HTS543232L9A300 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-K57A-BAMAJ MPN HTS543232L9A300

A 320 GB laptop hard drive spinning at 5400 RPM with 8 MB cache and a SATA 3.0 Gb/s interface

  • 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 for notebooks and consoles
  • 5400 RPM spindle speed with 8 MB cache
  • SATA 3.0 Gb/s interface for broad compatibility
  • 12 ms average seek time and 5.5 ms latency
  • Low power consumption and halogen-free design

320 GB 2.5" SATA notebook drive

This HGST Travelstar 5K320 is a 320 GB 2.5 inch internal hard drive built for laptop upgrades and replacements. It connects through a SATA 3.0Gb/s interface and spins at 5400 RPM with an 8 MB cache. The bare-drive packaging suits system builders and DIY installers.

Halogen-free design with standard SATA connectors

The drive uses a halogen-free construction that meets eco-friendly design goals. Its standard SATA data and power connectors fit any 2.5 inch drive bay or caddy without adapters. Low power consumption helps extend battery life in portable systems.

5400 RPM operation keeps heat and noise low

At 5400 RPM the drive runs cooler and quieter than faster spindle speeds, making it suitable for thin-and-light notebooks. Average seek time is 12 ms and average latency is 5.5 ms for typical office and media workloads. Power draw stays modest during normal read and write activity.

How it compares

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

Price $36.99
Cheaper than about 84% 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 $115.59 per TB
Cheaper than about 77% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameHitachi GST
Product lineTravelstar 5K320
Model nameHTS543232L9A300 (0A56417)
Total capacity320 GB
Performance
Average seek time12 ms
Mean latency5.5 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 weight0.02 kg
Package size152 × 108 × 13 mm

Questions about this item

What does the SATA 3.0Gb/s interface cap the transfer speed at in practice?

The SATA 3.0Gb/s link limits maximum throughput to about 300 MB/s, though the 5400 RPM mechanism will typically deliver less.

What physical dimensions and mounting does the 2.5" form factor need?

The drive uses the standard 2.5 inch width and the usual four bottom mounting holes for laptop bays or caddies.

How is this bare drive installed, and what step is often missed?

Connect the SATA data and power cables, secure the drive with screws, then initialise and format the 320GB volume in the OS before use.

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