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Silver 3.5 inch bare hard drive with circuit board visible

Seagate

Seagate ST3320820A BarraCuda 7200.10 320GB 7200 RPM 8MB IDE 3.5" internal hard drive

SKU CH-JAPJ-SFWWM MPN ST3320820A

320GB 7200 RPM IDE desktop hard drive with 8MB cache and perpendicular recording technology

  • PackagingBare Drive
  • InterfaceIDE Ultra ATA100 / ATA-6
  • Capacity320GB
  • RPM7200 RPM
  • Cache8MB
  • Average Seek Time11ms
  • 320 GB capacity stores large media libraries
  • 7200 RPM spindle speed delivers responsive data access
  • 8 MB cache buffers frequent read and write operations
  • IDE Ultra ATA100 interface fits legacy desktop motherboards
  • Perpendicular recording technology increases areal density for reliable storage

Seagate BarraCuda 7200.10 320GB IDE drive

This new Seagate ST3320820A is a 3.5 inch desktop internal hard drive with a 320GB capacity. It spins at 7200 RPM and uses an 8MB cache on an IDE Ultra ATA100 interface. Perpendicular recording technology supports the stated capacity and reliability.

Suits legacy IDE builds only

This drive fits systems that still accept a 3.5 inch IDE Ultra ATA100 connection. Builders working with motherboards that lack an IDE header cannot use this unit. Users needing higher capacities or faster interfaces should consider other options.

Interface decides compatibility

The IDE Ultra ATA100 connector is the single specification that determines whether this drive will install in your system. Verify that your motherboard or controller provides a matching 40-pin IDE port before purchase.

Highlights

  • 320 GB capacity stores large media libraries
  • 7200 RPM spindle speed delivers responsive data access
  • 8 MB cache buffers frequent read and write operations
  • IDE Ultra ATA100 interface fits legacy desktop motherboards
  • Perpendicular recording technology increases areal density for reliable storage

Specifications

BrandSeagate
SeriesBarraCuda 7200.10
ModelST3320820A
PackagingBare Drive
InterfaceIDE Ultra ATA100 / ATA-6
Capacity320GB
RPM7200 RPM
Cache8MB
Average Seek Time11ms
Average Write Time12ms
Average Latency4.16ms
FeaturesPerpendicular recording technology for maximum drive capacity and reliability
Ultra-fast performance
Superb reliability
Whisper-quiet operation
Enhanced G-Force Protection against handling damage
Clean Sweep calibration and Directed Offline scan diagnostics
RoHS (restriction of hazardous substances) compliant
Form Factor3.5"
Shipping weight0.68 kg
Package size203 × 152 × 51 mm

Questions about this item

Is the 320GB capacity the only option in the BarraCuda 7200.10 range?

This listing is for the 320GB model ST3320820A; other capacities exist in the series but are separate part numbers.

What does the 7200 RPM spindle speed mean for everyday use?

The 7200 RPM rotation gives an 11ms average seek time and 4.16ms latency, so the operating system and applications load faster than slower-spinning IDE drives.

Will the IDE Ultra ATA100 / ATA-6 interface limit transfer speed on a modern motherboard?

The ATA-6 interface caps the drive at 100 MB/s, so the 8MB cache and 7200 RPM platters cannot exceed that ceiling even on a faster controller.

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