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Silver 3.5 inch bare SATA hard drive with circuit board visible

Western Digital

Western Digital WD400JD 40GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-K2CG-DZHX4 MPN WD400JD

40 GB 3.5" SATA desktop drive with 7200 RPM and 8 MB cache for legacy upgrades or DVR storage

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity40GB
  • RPM7200 RPM
  • Cache8MB
  • Average Seek Time8.9ms
  • 7200 RPM spindle speed delivers responsive desktop performance
  • 8 MB cache buffers bursts for smoother multitasking
  • SATA 3.0 Gb/s interface provides straightforward connectivity
  • Cool-running design enhances reliability in warm chassis
  • WhisperDrive and SoftSeek technologies keep acoustic output near the threshold of hearing

40 GB SATA desktop drive

The Western Digital Caviar SE WD400JD is a 40 GB 3.5 inch internal hard drive with a SATA 3.0Gb/s interface. It spins at 7200 RPM and includes an 8 MB cache for everyday desktop storage tasks. The bare-drive packaging suits system integrators and upgraders fitting a standard drive bay.

Suits legacy builds not high-capacity needs

This drive fits older desktops, DVRs or industrial equipment that require a 3.5 inch SATA drive with modest capacity and cool, quiet operation. Buyers who want more storage space or faster transfer rates should look at something else.

40 GB capacity decides fit

The single specification that determines whether this is the right part is the 40 GB capacity. If the target system or application needs exactly this amount of space the drive matches; otherwise a different capacity is required.

주요 특징

  • 7200 RPM spindle speed delivers responsive desktop performance
  • 8 MB cache buffers bursts for smoother multitasking
  • SATA 3.0 Gb/s interface provides straightforward connectivity
  • Cool-running design enhances reliability in warm chassis
  • WhisperDrive and SoftSeek technologies keep acoustic output near the threshold of hearing

사양

BrandWestern Digital
SeriesCaviar SE
ModelWD400JD
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity40GB
RPM7200 RPM
Cache8MB
Average Seek Time8.9ms
Average Write Time10.9ms
Average Latency4.2ms
FeaturesCool - Cool operation results in the highest reliability, even in intensely hot environments such as digital video recorders. That's why these, the coolest on the market, are the drives of choice for the world's leading consumer electronics and PC manufacturers.
Quiet - The technology that Tom's Hardware Guide called "very fast and nearly silent" is used throughout this family of drives. Our WhisperDrive technology minimizes noise to levels near the threshold of human hearing. To cut seek noise, SoftSeek technology streamlines read/write seeking algorithms, resulting in more efficien
Form Factor3.5"
배송 무게0.45 kg
포장 크기146 × 102 × 25 mm

이 상품에 대한 질문

Will the 7200 RPM spindle hit a thermal limit during sustained writes?

The Caviar SE line is designed for cool operation and highest reliability even in intensely hot environments such as digital video recorders.

How loud is the drive when it runs all day in a desktop?

WhisperDrive technology minimises noise to levels near the threshold of human hearing and SoftSeek streamlines seeking algorithms for quieter operation.

What cables or controller do I need to connect this 3.5" SATA drive?

A standard SATA data cable and a SATA power connector from your power supply are required; the drive uses the SATA 3.0Gb/s interface.

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