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Silver 2.5 inch bare hard drive, 7mm thin

HGST

HGST HTS545032A7E380 320GB 5400 RPM 7mm laptop hard drive

SKU CH-GQ37-5JREJ MPN HTS545032A7E380

A 320 GB 2.5" laptop hard drive with a 7 mm profile, 5400 RPM speed and 8 MB cache over SATA 3.0Gb/s

  • Total capacity320 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory8 MB
  • Mean latency5.5 ms
  • 320 GB capacity stores more files and media
  • 7 mm slim profile fits ultra-thin laptops
  • 5400 RPM spindle delivers quiet, cool operation
  • 8 MB cache speeds up frequent data access
  • SATA 3.0 Gb/s interface ensures broad compatibility

HGST Travelstar Z5K500 320GB 7mm drive

The HGST Travelstar Z5K500 is a 2.5 inch internal hard drive with 320GB capacity and a 7mm low profile. It suits users replacing a failed drive in a slim laptop or adding affordable bulk storage to an older portable system. The SATA 3.0Gb/s interface connects directly to standard notebook drive bays without adapters.

SATA 3.0Gb/s interface practical limits

The SATA 3.0Gb/s link caps sequential throughput below the speed of modern solid-state drives. Mechanical latency averages 5.5ms at 5400 RPM, so random access remains slower than flash-based alternatives. The 8MB cache helps smooth small bursts but cannot overcome the physical rotation limit for sustained workloads.

Upgrading from smaller or thicker laptop drives

This drive replaces 2.5 inch drives thicker than 7mm or those with less than 320GB capacity in compatible bays. The jump is worth it when a thinner profile is required for ultraportable chassis or when the extra capacity extends usable space without moving to solid-state pricing.

How it compares

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

Price $82.99
Pricier than about 58% 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 $259.34 per TB
Typical for this category: the median of 416 items is $233.48 per TB.

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Specifications

Product
Brand nameHGST
Product lineTravelstar Z5K500
Model nameHTS545032A7E380 (0J11283)
Total capacity320 GB
Performance
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)
Max height7 mm
Maximum width69.75 mm
Maximum length100.3 mm
Shipping weight0.91 kg
Package size114 × 71 × 6 mm

Questions about this item

Is the 320GB capacity the only option in this Travelstar Z5K500 series?

This listing covers the HTS545032A7E380 model at 320GB; other Z5K500 capacities exist under different model numbers but are not part of this product.

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

The 5400 RPM rotation gives typical access times around 5.5ms latency, suited to general storage and quiet operation in slim 7mm bays.

How does the SATA 3.0Gb/s interface affect real-world throughput?

The 3.0Gb/s link sets the bus ceiling; actual read and write speeds will stay within that limit and are further shaped by the 8MB cache and 5400 RPM mechanics.

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