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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

  • Total capacity250 GB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB

Capacity 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.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $83.99
Cheaper than about 58% of the 4,938 comparable items (median $107.99).
Total capacity 250 GB
Lower than about 90% of the 2,372 comparable items (median 2 TB).
Price per TB $335.96 per TB
Pricier than about 86% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWD
Product lineRE
Model nameWD2503ABYZ
Total capacity250 GB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Cache memory64 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Max height26.1 mm
Maximum width101.6 mm
Maximum length147 mm
Shipping weight0.45 kg
Package size147 × 102 × 25 mm

Other versions of this model

5 more in the same range

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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