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Silver 2.5 inch SATA hard drive rectangular shape

Seagate

Seagate Momentus 5400.5 ST9320320AS 320GB 5400RPM 16MB 2.5" SATA internal hard drive

SKU CH-GE93-WDE0J

A 320 GB 2.5-inch SATA hard drive spinning at 5400 RPM with a 16 MB buffer

  • 320 GB capacity stores large media libraries and applications
  • 5400 RPM spindle speed provides reliable everyday performance
  • 16 MB cache accelerates frequent read and write operations
  • SATA 3 Gb/s interface ensures broad laptop and desktop compatibility
  • 5 inch form factor fits standard internal drive bays

320 GB 2.5" SATA notebook drive

The Seagate Momentus 5400.5 ST9320320AS is a 320 GB 2.5-inch internal hard drive with a 5400 RPM spindle and a 16 MB cache. It connects through a SATA 3 Gb/s interface and ships new in a 1.0 pound package. The drive is built for standard laptop bays and compatible desktop brackets.

Suits basic storage upgrades.

This drive fits users who need affordable extra capacity for documents, media libraries or a secondary operating system in an older notebook. Buyers who want faster boot times, quicker application launches or sustained throughput for video editing should look at solid-state alternatives instead.

320 GB with 16 MB cache for everyday files

The 320 GB platter comfortably holds an operating system, office suites and a moderate photo or music collection. The 5400 RPM speed and 16 MB buffer handle sequential reads and writes for typical user data but run out of headroom with large database workloads, heavy multi-tasking or modern game installations.

Highlights

  • 320 GB capacity stores large media libraries and applications
  • 5400 RPM spindle speed provides reliable everyday performance
  • 16 MB cache accelerates frequent read and write operations
  • SATA 3 Gb/s interface ensures broad laptop and desktop compatibility
  • 5 inch form factor fits standard internal drive bays

Specifications

No published specifications for this item yet.

Questions about this item

What SATA interface version must my laptop or desktop motherboard provide for this drive to operate?

The drive uses a SATA 3Gb/s interface, so the host system needs a SATA port that supports at least 3Gb/s for full speed.

If I keep an older SATA 1.5Gb/s drive in the same machine, will this Momentus drive still work at its rated speed?

Yes, the SATA 3Gb/s interface is backward compatible, so the drive will function on a 1.5Gb/s port but will run at the slower link speed.

How can I confirm the drive is recognised and performing correctly after installation?

Check the BIOS or UEFI to see the ST9320320AS listed with its 320GB capacity, then run a SMART health check and a sequential read test to verify the 5400 RPM operation.

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