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Silver 3.5 inch bare hard drive with green circuit board visible

Seagate

Seagate ST3400832AS 400GB 7200 RPM internal hard drive

SKU CH-7ZAX-F04MJ MPN ST3400832AS

A 400GB 7200 RPM 3.5" desktop drive with 8MB cache and SATA 1.5Gb/s interface

  • PackagingBare Drive
  • InterfaceSATA 1.5Gb/s
  • Capacity400GB
  • RPM7200 RPM
  • Cache8MB
  • Average Seek Time11ms
  • 7200 RPM spindle speed for responsive desktop performance
  • 400 GB capacity stores large media and application libraries
  • 8 MB cache buffer accelerates frequent read and write operations
  • SATA 1.5 Gb/s interface connects directly to standard motherboard ports
  • 11 ms average seek time reduces data access latency

Product Identity

The Seagate BarraCuda 7200.8 ST3400832AS is a 400GB 3.5-inch internal hard drive spinning at 7200 RPM with an 8MB cache. It connects via a SATA 1.5Gb/s interface and is suited for desktop systems requiring basic storage capacity.

Installation Notes

The drive uses a standard SATA data and power connection, so it fits any desktop bay with matching cables and mounting points. As a bare drive it ships without screws, cables or brackets; installers must supply their own. The 1.0-inch low-profile height eases fitment in tight chassis, while the 11ms average seek time and 4.16ms latency are inherent mechanical characteristics that cannot be altered.

Capacity and Limits

At 400GB the drive holds an operating system, applications and a moderate media library for everyday desktop use. The 7200 RPM spindle and 8MB buffer deliver adequate throughput for single-stream tasks, but the SATA 1.5Gb/s link and mechanical latency become bottlenecks for heavy multi-threaded workloads or large sequential transfers. Buyers needing more space or faster interface speeds should consider higher-capacity or newer-interface drives.

商品特色

  • 7200 RPM spindle speed for responsive desktop performance
  • 400 GB capacity stores large media and application libraries
  • 8 MB cache buffer accelerates frequent read and write operations
  • SATA 1.5 Gb/s interface connects directly to standard motherboard ports
  • 11 ms average seek time reduces data access latency

商品規格

BrandSeagate
SeriesBarraCuda 7200.8
ModelST3400832AS
PackagingBare Drive
InterfaceSATA 1.5Gb/s
Capacity400GB
RPM7200 RPM
Cache8MB
Average Seek Time11ms
Average Latency4.16ms
FeaturesNative Command Queuing
SoftSonic motor
RoHS-compliant
Enhanced G-Force Protection
Form Factor3.5"
出貨重量0.71 kg
包裝尺寸203 × 152 × 51 mm

商品問答

How do I verify the ST3400832AS is performing correctly after installation?

The drive should be detected at its full 400GB capacity in BIOS and the operating system, report 7200 RPM and 8MB cache in SMART data, and show average seek times near 11ms with latency around 4.16ms during benchmarks.

What comes with the bare drive and what must I purchase separately?

The package contains only the 3.5" 1.0-inch low-profile drive mechanism; you must supply a SATA data cable, a SATA power connector from your PSU, four 6-32 mounting screws, and a 3.5" drive bay or adapter.

Which BarraCuda 7200.8 capacity should I choose for a desktop build?

This model is the 400GB variant (ST3400832AS); other capacities in the 7200.8 series carry different model numbers, so select the 400GB version if that capacity matches your storage plan and budget.

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