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Deal.ai › Seagate
Seagate
Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive

Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive

Best price now

$260.10at Tech Network Supply LLCChecked Nov 12

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Price facts

  • Last seen at $260.10 at Tech Network Supply LLC on Nov 12.

Our take on the Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive

The Seagate 9AG284-999 is a 300GB 3.5-inch desktop hard drive spinning at 7200 RPM over a parallel ATA-100 interface. It is a legacy part: PATA drives were superseded by SATA around 2005, so it only makes sense for keeping an old IDE machine or enclosure running. Compared with modern SATA and SSD drives it is slower, louder and far smaller in capacity, but it is a direct drop-in for boards that have no SATA ports. Buy it as a replacement part, not as storage for a current PC.

Best forReviving an old IDE/PATA desktopReplacing a failed drive in a legacy machineRetro PC and vintage hardware buildsSpare part for IDE external enclosures
Pros
  • Native PATA-100 interface fits older motherboards without adapters
  • 7200 RPM spindle is fast for its generation
  • 300GB is generous for an IDE-era system
  • Standard 3.5-inch desktop form factor
  • Simple jumper-based master/slave setup on IDE cables
Cons
  • Parallel ATA is obsolete; no current PC accepts it directly
  • Much slower than any SATA drive or SSD
  • Louder and hotter than modern drives
  • Used or old stock units carry wear and failure risk
  • No warranty support typical of current drives

Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive prices at every store

  • Tech Network Supply LLCNew

    In stockReturn policy

    $260.10Checked Nov 12
    Visit Tech Network Supply LLC

About the Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive

This is a Seagate 300GB hard drive in the 3.5-inch size. It spins at 7200 RPM and uses an ATA-100 interface.

Brand
Seagate
Model
9AG284-999
Capacity
300GB
Speed
7200 RPM
Interface
ATA-100
Form factor
3.5-inch

Questions and answers

Will this work in a modern PC?
No. It uses a 40-pin parallel ATA (IDE) connector, which current motherboards do not have. You would need an IDE-to-SATA or IDE-to-USB adapter, and even then it is slow.
Is 300GB enough for Windows?
It can hold a lightweight Windows install and some files, but it is small by today's standards. It suits an older machine or a secondary drive rather than a main system disk.
What is the difference between this and a SATA drive?
This uses the older wide ribbon-cable IDE interface at ATA-100 speeds. SATA drives use a thin cable, are faster, and plug into any PC made in the last two decades.
Can I use it in an external enclosure?
Yes, if the enclosure has an IDE interface. Most current enclosures are SATA-only, so check the connector before buying.
How do I set it up with another IDE drive?
Set the jumper to master or slave to match its position on the ribbon cable. The drive ships as a bare OEM unit, so no cable or screws are included.
Where is the Seagate 9AG284-999 300GB 7200RPM ATA-100 3.5-inch Hard Drive cheapest?
At Tech Network Supply LLC, for $260.10, as of our latest check.

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