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Silver 3.5 inch internal hard drive bare circuit board visible

Western Digital

Western Digital WD2503ABYZ 250GB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-CX7Z-2SEB7 MPN WD2503ABYZ

250 GB enterprise hard drive with 7200 RPM, 64 MB cache and SATA 6.0 Gb/s interface for write-intensive workloads

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity250GB
  • RPM7200 RPM
  • Cache64MB
  • FeaturesIdeal for enterprise servers and storage, video surveillance

Options 250GB

  • Enterprise-grade reliability for write-intensive workloads
  • 250GB capacity stores critical business data
  • 7200 RPM spindle speed delivers responsive performance
  • 64MB cache accelerates frequent read/write operations
  • SATA 6.0Gb/s interface ensures broad system compatibility

Enterprise 250GB SATA drive

The WD RE WD2503ABYZ is a 250GB 3.5-inch hard drive built for enterprise storage, video surveillance and write-intensive workloads. It runs at 7200 RPM with a 64MB cache on a SATA 6.0Gb/s interface. The bare-drive packaging suits system integrators and server deployments.

Simple SATA installation

Mount the drive in a standard 3.5-inch bay using the 26.10mm height, 101.60mm width and 147.00mm length clearances. Connect one SATA data cable and one SATA power cable. The bare drive ships without screws, cables or mounting brackets, so supply your own hardware. Misaligned screw holes or missing caddies are the common delays.

Check bay depth and controller

Verify the chassis bay accommodates 147.00mm depth and that the backplane or controller supports SATA 6.0Gb/s. Confirm the power supply has a free SATA power connector. RAID or HBA firmware should be current for enterprise workloads. This drive is not suited for portable enclosures or laptop bays.

Highlights

  • Enterprise-grade reliability for write-intensive workloads
  • 250GB capacity stores critical business data
  • 7200 RPM spindle speed delivers responsive performance
  • 64MB cache accelerates frequent read/write operations
  • SATA 6.0Gb/s interface ensures broad system compatibility

Specifications

BrandWD
SeriesRE
ModelWD2503ABYZ
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity250GB
RPM7200 RPM
Cache64MB
FeaturesIdeal for enterprise servers and storage, video surveillance, and other write-intensive applications
Industry's highest capacity nearline drive
Highest performance for business-critical applications
Designed for quality and reliability
Dual processor
Vibration Protection
Dual actuator technology
StableTrac
Multi-axis shock sensor
RAID-specific, time-limited error recovery (TLER)
NoTouch ramp load technology
Thermal extended burn-in test
Dynamic fly height technology
UsageFor Enterprise Storage
Form Factor3.5"
Height (maximum)26.10mm
Width (maximum)101.60mm
Length (maximum)147.00mm
Shipping weight0.45 kg
Package size147 × 102 × 25 mm

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Questions about this item

How do I confirm the WD2503ABYZ is running at 7200 RPM after installation?

Use a SMART monitoring tool such as CrystalDiskInfo to check the reported rotation rate and verify the drive identifies as a 7200 RPM model.

What comes with the bare-drive WD2503ABYZ and what must I supply?

The package contains only the 3.5-inch drive; you must provide a SATA data cable, a SATA power connector, mounting screws and a 3.5-inch drive bay.

Which capacity of the RE series should I choose for a write-intensive surveillance array?

This model provides 250 GB; select a higher-capacity RE drive if you need more space for continuous recording workloads.

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