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Silver 2.5 inch bare laptop hard drive 7mm thin

HGST

HGST 0A78601 Travelstar Z5K320 160GB 5400 RPM 8MB SATA 2.5" laptop hard drive

SKU CH-9CRM-4D5TM MPN 0A78601

A 160GB 2.5-inch SATA laptop hard drive with a 7mm z-height, 5400 RPM speed and 8MB cache for low power use

  • Total capacity160 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory8 MB
  • Average seek time13 ms
  • Slim 7 mm height enables thinner laptop designs
  • 6 W read/write power extends battery runtime
  • 400 G operating shock protects data from drops
  • 5400 RPM and 8 MB cache deliver responsive everyday performance
  • SATA 3.0 Gb/s interface works with standard notebook bays

HGST Travelstar Z5K320 160GB 5400 RPM Laptop Drive

The HGST Travelstar Z5K320 is a 2.5-inch internal hard drive with 160GB capacity and a 5400 RPM spindle speed. It uses a SATA 3.0Gb/s interface and includes 8MB of cache. The 7mm z-height design allows it to fit thinner notebook chassis as well as standard 9.5mm bays.

Sustained Operation at 5400 RPM with Low Power Draw

Under continuous workloads the drive maintains its 5400 RPM speed while consuming 1.6W during read and write activity. Idle power drops to 0.55W, helping extend battery life in portable systems. Average seek time is 13ms with 5.5ms average latency. The 400G operating shock rating protects data during movement.

Straightforward 2.5-Inch SATA Installation

Installation follows the standard 2.5-inch SATA procedure: connect the data and power cables, then secure the drive in the bay. The bare-drive packaging means no mounting screws or adapter brackets are included. The 7mm height fits most modern ultrabooks, but some older laptops require a 9.5mm spacer that is not supplied.

How it compares

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

Price $54.99
Cheaper than about 61% of the 645 comparable items (median $66.99).
Total capacity 160 GB
Lower than about 70% of the 419 comparable items (median 320 GB).
Price per TB $343.69 per TB
Pricier than about 65% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameHGST
Product lineTravelstar Z5K320
Model nameHTS543216A7A384 (0A78601)
Total capacity160 GB
Performance
Average seek time13 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 weight0.91 kg
Package size114 × 69 × 13 mm

Questions about this item

How much power does the HGST Travelstar Z5K320 draw during continuous read/write use?

The drive consumes 1.6W during read/write operations and drops to 0.55W at idle, helping extend battery life in notebooks.

Does the 7mm height of this 2.5" SATA drive require a spacer or adapter for my laptop bay?

At 7mm z-height it fits modern slim bays directly; a 9.5mm bay will need a 2.5mm spacer which is not included with the bare drive.

Will the SATA 3.0Gb/s interface work reliably with an older SATA 1.5Gb/s controller in my legacy notebook?

Yes, the SATA 3.0Gb/s interface is backward compatible with 1.5Gb/s hosts and will operate at the lower speed without configuration.

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