Western Digital WD2500JB Special Edition EIDE / ATA / PATA Hard Disk Drive

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Western Digital Part #/MPN: WD2500JB

DiscTech Item #: WDC-WD2500JB-NP-OE


$69.00
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    Stock Levels

    This item is currently (nearly) out of stock. It may be possible to arrange fast shipment. If you need it urgently call us. Otherwise, it usually ships within 1 week.

$69.00

Capacity: 250GB

Speed: 7,200RPM

Interface Types: IDE ATA 3.5in

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Average Seek Time: 8.9 / 10.9

Electrical Interface: EIDE Ultra ATA100 100MBps

On-Board Cache: 8MB

Physical Specifications
Formatted Capacity 1250,059 MB
Interface40-pin EIDE
Actuator TypeRotary Voice Coil
Number of Disks3
Data Surfaces6
Number of Heads6
Bytes Per Sector512
User Sectors Per Drive488,397,168
Servo TypeEmbedded




Performance Specifications
Average Seek 1

- Read

- Write
8.9 ms average

10.9 ms average
Track-to-Track Seek2.0 ms average
Full Stroke Seek 21 ms average
Index Pulse Period8.3 ms (nominal)
Average Latency4.2 ms (nominal)
Rotational Speed7200 RPM (nominal)
Buffer Size8 MB
Data Transfer Rate (maximum)

- Buffer to Host











- Buffer to Disk


100 MB/s (Mode 5 Ultra ATA)

66.6 MB/s (Mode 4 Ultra ATA)

33.3 MB/s (Mode 2 Ultra ATA)

16.6 MB/s (Mode 4 PIO)

16.6 MB/s (Mode 2 multi-word DMA)



748 Mbits/s maximum

Click here to view the manufacturer's item description/brochure

Weight: 1.8

Warranty: 1 Year DiscTech

New Pull

Condition Levels Explained

The product has been mounted in a brand new system (e.g. server), then removed from the system, before entering service. These products may have a few hours of usage due to system build time etc. Ostensibly however, New Pulls are electronically new items, which may show signs of being physically mounted and unmounted. All handling is performed by trained technicians, taking full ESD precautions.

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty

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