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Silver 3.5 inch bare hard drive with exposed circuit board

Western Digital

Western Digital RE3 WD2502ABYS 250GB 7200 RPM 16MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-RH3H-N4M6A MPN WD2502ABYS

A 250 GB 3.5" desktop drive spinning at 7200 RPM with 16 MB cache and a SATA 3.0 Gb/s interface

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity250GB
  • RPM7200 RPM
  • Cache16MB
  • Average Seek Time8.9ms
  • 7200 RPM spindle speed gives fast data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface fits legacy servers and workstations
  • Third-generation dynamic fly height adjusts head clearance in real time
  • Fourth-generation RAFF technology corrects linear and rotational vibration simultaneously

Enterprise SATA drive for server workloads

The Western Digital RE3 WD2502ABYS is a 250GB 3.5" internal hard drive built for business-critical server and storage applications. It runs at 7200 RPM with a 16MB cache and a SATA 3.0Gb/s interface. The bare-drive packaging suits system integrators and IT departments deploying high-reliability storage arrays.

Low-noise operation with vibration tolerance

Technologically advanced acoustics minimise operational noise while cool drive operation supports extended uptime. Fourth-generation RAFF technology monitors and corrects both linear and rotational vibration in real time, delivering up to 60% performance improvement in high-vibration environments. Average seek time is 8.9ms and average latency is 4.2ms.

Dynamic fly-height and burn-in reliability

Third-generation dynamic fly-height adjusts each read-write head in real time for optimum reliability across varying conditions. Every unit undergoes an extended thermal burn-in test before shipment. The low-profile 1.0-inch form factor fits standard 3.5" bays while the dual-processor architecture sustains throughput for demanding workloads.

Points forts

  • 7200 RPM spindle speed gives fast data access
  • 16 MB cache buffers bursts for smoother throughput
  • SATA 3.0 Gb/s interface fits legacy servers and workstations
  • Third-generation dynamic fly height adjusts head clearance in real time
  • Fourth-generation RAFF technology corrects linear and rotational vibration simultaneously

Caractéristiques

BrandWestern Digital
SeriesRE3
ModelWD2502ABYS
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity250GB
RPM7200 RPM
Cache16MB
Average Seek Time8.9ms
Average Latency4.2ms
FeaturesThird generation dynamic fly height - Each read-write head's fly height is adjusted in real time for optimum reliability.
Thermal extended burn-in test - Each drive is put through extended burn-in testing with thermal cycling to ensure reliable operation.
NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
Perpendicular Magnetic Recording (PMR) - WD RE3 drives utilize PMR technology to achieve even greater areal density.
Form Factor3.5"
Poids d’expédition0.91 kg
Dimensions du colis149 × 102 × 25 mm

Questions sur cet article

How do I install this 3.5" SATA drive and what step is often missed?

Mount the drive in a 3.5" bay, connect the SATA data cable and 15-pin SATA power connector, then enable the port in BIOS so the 250GB volume appears.

What maintenance or replacement will this RE3 drive need later?

No routine maintenance is required; replace the drive if SMART attributes report reallocated sectors or if the 7200 RPM mechanism develops unusual noise.

What limit appears first during sustained use of this 7200 RPM drive?

The SATA 3.0Gb/s interface caps sustained throughput, so long sequential transfers will hit that ceiling before the 16MB cache or mechanical speed becomes the bottleneck.

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