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Silver 2.5 inch internal hard drive, .8 inch thick, IDE connector visible

Seagate

Seagate ST340215AProduct BarraCuda 40 GB laptop hard drive 7200 rpm 2 MB buffer IDE Ultra ATA/100

SKU CH-3XZX-A994D MPN ST340215AProduct

A 40 GB internal laptop hard drive spinning at 7200 rpm with a 2 MB buffer and IDE Ultra ATA/100 interface

  • Flash memory typeHard Drive
  • 40 GB capacity stores essential files and applications
  • 7200 rpm spindle speed provides responsive performance for everyday tasks
  • 2 MB buffer helps smooth data transfers
  • IDE Ultra ATA/100 interface fits compatible legacy laptops
  • RoHS certified and 0.8" slim profile for standard 2.5" bays

Capacity and interface

This Seagate BarraCuda drive provides 40 GB of storage on an IDE Ultra ATA/100 connection. The 7200 rpm spindle speed and 2 MB buffer serve standard laptop workloads. The 0.8 inch height matches common 2.5 inch drive bays. It arrives in new condition and meets RoHS requirements.

Fit and exclusion

The unit suits owners of legacy laptops that only support IDE Ultra ATA/100 and need a direct replacement drive. Builders whose systems require a serial interface or a larger capacity should consider other options. The physical dimensions are 4 inches wide by 5.8 inches deep. Weight is approximately 12.87 ounces.

Deciding specification

The IDE Ultra ATA/100 interface is the single detail that determines whether this drive will work in a given machine. If the host system lacks an IDE connector that supports the ATA-6 standard, the drive cannot be installed. Verify the laptop's interface before purchase.

How it compares

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

Price $46.99
Cheaper than about 71% of the 645 comparable items (median $66.99).

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Specifications

Product
Brand nameSeagate
Storage
Flash memory typeHard Drive

Questions about this item

What real-world throughput does the IDE Ultra ATA/100 interface cap at on this drive?

The IDE Ultra ATA/100 (ATA-6) interface limits burst transfers to 100 MB/s, while sustained rates follow the 7200 rpm platter speed and 2 MB buffer.

Will the 0.8" high, 4" wide, 5.8" deep chassis fit my laptop's 2.5" bay?

Yes — the 0.8" height matches the standard 2.5" form factor, and the 4" by 5.8" footprint aligns with common laptop drive bays.

Which jumper setting should I use when installing this ST340215A as a single drive?

Set the jumper to Master or Cable Select for a single-drive configuration; the drive ships without a jumper fitted, so fit one before securing it in the bay.

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