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Silver 3.5 inch desktop hard drive with green circuit board visible on underside

HGST

HGST 320GB 7200RPM SATA 3.0Gb/s 16MB 3.5" internal hard drive HDT721032SLA380

SKU CH-5DNQ-XMRVP

A 320GB 7200 RPM 3.5-inch desktop hard drive with SATA 3.0Gb/s interface and 16MB cache

  • InterfaceSATA 3.0Gb/s
  • Capacity320GB
  • RPM7200 RPM
  • Cache8MB
  • Form Factor3.5"
  • 7200 RPM spindle speed delivers responsive desktop performance
  • 320 GB capacity stores everyday files and applications
  • SATA 3.0 Gb/s interface provides broad motherboard compatibility
  • 16 MB cache buffers bursts for smoother throughput
  • 5 inch form factor fits standard desktop drive bays

Designed for desktop storage upgrades

This 3.5 inch hard drive delivers 320GB of capacity over a SATA 3.0Gb/s interface. It suits users who need affordable bulk storage for documents, media or backups on a standard desktop platform. The 7200 RPM spindle speed provides responsive access for everyday workloads.

Runs cool and quiet at idle

The drive operates at modest power levels during typical desktop use, keeping case temperatures low. Acoustic output remains unobtrusive in a quiet room, making it suitable for living-room or office PCs. The 8MB cache helps smooth routine read and write requests.

Steady throughput on sustained workloads

Sequential transfer rates hold consistent during long copy or backup sessions without thermal throttling. The 7200 RPM motor maintains stable performance across extended operations rather than peaking briefly. This behaviour suits batch processing or media recording tasks.

Highlights

  • 7200 RPM spindle speed delivers responsive desktop performance
  • 320 GB capacity stores everyday files and applications
  • SATA 3.0 Gb/s interface provides broad motherboard compatibility
  • 16 MB cache buffers bursts for smoother throughput
  • 5 inch form factor fits standard desktop drive bays

Specifications

BrandHitachi GST
InterfaceSATA 3.0Gb/s
Capacity320GB
RPM7200 RPM
Cache8MB
Form Factor3.5"

Questions about this item

How do I install this 3.5 inch SATA drive and which step do people often miss?

Mount the drive in a 3.5 inch bay, connect the SATA data and power cables, then initialise and format the 320GB volume in Disk Management — the step most often missed is creating the partition and file system after the BIOS detects the drive.

What maintenance or replacement will this 7200 RPM drive need over time?

Mechanical hard drives have no scheduled maintenance; keep backups current and replace the unit if SMART attributes report reallocated sectors or if unusual noise appears during operation.

What limit appears first when this SATA 3.0Gb/s drive runs under sustained load?

The 3.0Gb/s SATA interface caps maximum sequential throughput, so sustained large-file transfers will hit that bus ceiling before the 7200 RPM platters or 8MB cache become the bottleneck.

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