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Silver rectangular 2.5 inch bare laptop hard drive with circuit board visible

SAMSUNG

SAMSUNG HM320JI 320GB 5400 RPM 8MB Cache SATA 1.5Gb/s 2.5" laptop hard drive

SKU CH-G1TE-XTP87 MPN HM320JI

A 320 GB 2.5-inch laptop hard drive with 5400 RPM, 8 MB cache and SATA 1.5 Gb/s interface

  • Total capacity320 GB
  • Interface typeSATA 1.5Gb/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
  • 5400 RPM spindle delivers quiet operation
  • 8 MB cache accelerates frequent file access
  • SATA 1.5 Gb/s interface fits legacy notebooks
  • 5 mm slim profile suits tight drive bays

Capacity and fit

This Samsung M6 Series HM320JI is a 320GB 2.5-inch internal hard drive built for laptops that accept a 9.5mm drive height. It suits users replacing an older mechanical drive or adding storage to a compatible notebook bay. The bare-drive packaging means no brackets or cables are included. Buyers who need more capacity or a thinner 7mm profile should look elsewhere.

SATA 1.5Gb/s interface

The drive connects through a SATA 1.5Gb/s interface, which limits maximum transfer rates to 150MB/s. Average seek time is 12ms and average latency is 5.6ms at 5400 RPM. Systems with only SATA 3Gb/s or 6Gb/s ports will still work but the drive will not run faster than its native link speed. Builders who require the higher throughput of later SATA revisions will not get it here.

Straightforward installation

Installation follows the standard 2.5-inch SATA mounting pattern used in most notebooks. The 9.5mm height fits the majority of drive caddies, though some ultra-thin chassis only accept 7mm drives. The bare drive has no pre-installed operating system, so a fresh OS install or disk clone is required after fitting. Users without a SATA data cable or mounting screws must source them separately.

How it compares

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

Price $47.99
Cheaper than about 70% 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 $149.97 per TB
Cheaper than about 68% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSAMSUNG
Product lineM6 Series
Model nameHM320JI
Total capacity320 GB
Performance
Average seek time12 ms
Mean latency5.6 ms
Rotational speed5,400 RPM
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 1.5Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height9.5 mm
Maximum width69MM
Maximum length100MM
Shipping weight0.45 kg
Package size152 × 127 × 51 mm

Questions about this item

Is the 320GB capacity the only option in this M6 series?

The M6 series HM320JI model is supplied as a 320GB drive; other capacities in the same series are separate part numbers.

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

5400 RPM with 12ms average seek and 5.6ms latency gives typical notebook throughput for office tasks and media storage.

The drive lists SATA 1.5Gb/s — will it run slower on a SATA 3Gb/s or 6Gb/s port?

SATA 1.5Gb/s (150 MB/s) is the drive's native link speed; it will operate at that rate even when connected to faster SATA ports.

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