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Silver 3.5 inch SATA hard drive with circuit board visible

Western Digital

Western Digital WD2500AVJS 250GB 7200RPM 3.5" SATA internal hard drive

SKU CH-7MNX-MGRHA

250 GB 7200 RPM SATA drive with 8 MB cache and SilkStream technology for smooth playback of up to twelve simultaneous HD streams

  • 250 GB capacity stores large multimedia libraries
  • 7200 RPM spindle speed enables fast data access
  • SATA 3 Gb/s interface connects to desktop motherboards
  • SilkStream technology supports up to twelve simultaneous HD streams
  • 8 MB cache buffer improves read and write performance

AV-optimised storage for DVR builds

This 250GB Western Digital AV drive targets integrators building digital video recorders or surveillance appliances that demand continuous sequential writes. Its SilkStream technology is tuned for smooth playback of up to twelve simultaneous HD streams using a 2 MB host transfer block. It is not suited for general-purpose OS boots or random-access workloads that need low latency.

SATA 3Gb/s interface and 8MB cache

The single specification that determines compatibility is the 3Gb/s SATA interface paired with an 8MB buffer. Systems limited to SATA 1.5Gb/s will operate at the lower speed, while 6Gb/s controllers will negotiate down; no other interface or protocol is supported. Builders must verify their host controller provides a standard 3.5" SATA data and power connection.

Thermals, noise and power in normal use

As a 7200 RPM mechanical drive it produces audible seek noise and measurable vibration during sustained recording, typical for always-on AV workloads. Power draw follows standard 3.5" SATA patterns with higher spin-up current and lower idle consumption. Adequate chassis airflow is recommended to keep operating temperatures within the manufacturer's specified range.

商品特色

  • 250 GB capacity stores large multimedia libraries
  • 7200 RPM spindle speed enables fast data access
  • SATA 3 Gb/s interface connects to desktop motherboards
  • SilkStream technology supports up to twelve simultaneous HD streams
  • 8 MB cache buffer improves read and write performance

商品規格

本商品目前尚未公佈規格。

商品問答

How many HD video streams can the 250GB 7200RPM drive play back at once?

SilkStream technology supports smooth playback of up to twelve simultaneous HD streams using a 2MB host transfer block size.

What does the SATA 3Gb/s interface mean for real-world transfer speed?

The drive connects through a SATA 3Gb/s port, which sets the electrical signalling rate; actual throughput will depend on the host controller and cable quality.

Will this 3.5-inch drive fit a standard desktop bay and SATA cables?

The 3.5in form factor matches standard desktop drive bays and uses regular SATA data and power connectors.

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