Western Digital Corp. WD800JB20PK hard drive specifications

WD Caviar WD800JB Special Edition - hard drive - 80 GB - ATA-100

WD Caviar Special Edition hard drives are designed to maximize desktop computer performance for activities requiring high-performance storage such as computer gaming, digital video editing, and file server applications. Offering various capacities, the WD Caviar Special Edition family is equipped with an 8MB buffer - the largest buffer available today in a desktop EIDE hard drive, delivering data to users faster than any hard drive in its class. The Western Digital hard drive comes with a Cable Select compliant 40-pin, 80-conductor IDE interface cable, mounting screws, jumpers, installation poster, installation guide, and Data Lifeguard Tools installation software and utilities. The Special Edition hard drive provides a higher percentage of cache hits and significantly faster time to data than industry-standard 2 MB versions. Within the complex operations of hard drives, the buffer is used to hold the results of recent reads from the disk, and also to "pre-fetch" information that is likely to be requested in the near future. The use of an increased buffer improves the performance by reducing the number of physical accesses to the disk and allowing data to stream from the disk uninterrupted by mechanical operations. Data Lifeguard is an expanded set of data protection tools that includes shock protection, and environmental protection system, and embedded error detection and repair features that automatically find, isolate, and repair problem areas that may develop over the extended use of the hard drive. With these enhanced data reliability features, the drive can perform more accurate monitoring, error repair, and deliver exceptional data security. Data Lifeguard Tools is a set of software utilities that work in conjunction with the embedded Data Lifeguard features to make hard drive installation, drive management diagnostics, and repair simple and worry-free. Shock Guard provides outstanding improvements in shock and vibration protection. Shock Guard allows instantaneous data protection at high shock values to achieve leading shock specifications. Western Digital hard drives set the industry performance standard by providing Ultra ATA/100 technology. This interface allows for data transfer rates of up to 100 MB per second, 50 percent faster than Ultra ATA/66, resulting in increased performance and data integrity. Ultra ATA/100 is also backward-compatible. 7200 RPM hard drives provide 33 percent faster disk transfer rates than 5400 RPM hard drives. This performance boost yields perceptible improvement in real world reaction time on the PC.

Recommended software for Western Digital Corp. WD800JB20PK status and S.M.A.R.T. monitoring is ActiveSMART www.ariolic.com

Western Digital Corp.

HDD Part Number

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


Packaged Quantity

Device Type
Hard drive - Internal hard drive

4 in

5.8 in

1 in

1.3 lbs

Hard Drive

Form Factor

80 GB

Interface Type

Buffer Size
8 MB

Shock Guard, Data Lifeguard

Compliant Standards


Drive Transfer Rate
100 MBps

Internal Data Rate
65.6 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


Package Type


Power Device

Software / System Requirements

Software Included
Drivers & Utilities

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 - 85%

Shock Tolerance
65 g @ 2ms half-sine pulse (operating) / 200 g @ 2ms half-sine pulse (non-operating)

Vibration Tolerance
0.75 g @ 20-300 Hz (operating) / 4 g @ 20-500 Hz (non-operating)

Sound Emission
37 dBA

Max Altitude Operating
9840 ft