Western Digital Corp. WD2500JBDTL hard drive specifications

WD Caviar Blue WD2500JB - hard drive - 250 GB - ATA-100

Cool-running, quiet operation, superior performance and industry-leading reliability make these next-generation WD Caviar Blue drives the perfect hard drives for desktop and enterprise storage. WD, the first to introduce an 8 MB buffer, has advanced the caching algorithms of this new and improved Caviar family of hard drives, resulting in next-generation high performance - performance that matches the speed of most 16 MB cache drives. Heat is a major contributor to hard drive wear, and cool drive operating temperatures help increase long-term drive reliability. WD achieves the lowest operating temperature of any hard drive in its class, including slower drives spinning at 5, 400 RPM, by lowering the drives' power consumption through advanced design of electronics and firmware. Today's PCs, digital video recorders and gaming machines are increasingly operated in environments where noise is less tolerated. WD minimizes WD Caviar noise to levels virtually below the threshold of human hearing with its WhisperDrive technology, which features a highly efficient power driver design. And to cut seek noise, Soft Seek technology streamlines read/write seeking algorithms, resulting in the drive operating more efficiently when accessing and writing data.

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Western Digital Corp.

HDD Part Number

Hard drive health monitoring software
ActiveSMART by Ariolic Software. Click to download ActiveSMART


Device Type
Hard drive - Internal hard drive

4 in

5.8 in

1 in

1.3 lbs

Hard Drive

Form Factor

250 GB

Interface Type

Buffer Size
8 MB

Soft Seek, WhisperDrive, Data Lifeguard


Drive Transfer Rate
100 MBps

Internal Data Rate
93.5 MBps

Seek Time
8.9 ms (average) / 21 ms (max)

Track-to-Track Seek Time
2 ms

Average Latency
4.2 ms

Spindle Speed
7200 rpm


Storage Hard Drive / Non-Recoverable Errors
1 per 10^14

Start / Stop Cycles

Storage Controller


Expansion / Connectivity

1 x ATA-100 - 40 pin IDC

Compatible Bays
1 x Internal - 3.5" x 1/3H

Compatible Slots
x None

Manufacturer Warranty

Service & Support
3 years warranty

Service & Support Details
Limited warranty - 3 years

Environmental Parameters

Min Operating Temperature
41 �F

Max Operating Temperature
131 �F

Humidity Range Operating
5 - 95%

Vibration Tolerance
0.75 g @ 20-300 Hz (operating)

Sound Emission
28 dBA