Western Digital WD1500AHFDRTL - Raptor X 150 GB Hard Drive, WD1500AHFD - Raptor X 150 GB Hard Drive, WD740GD - Raptor, WD800GD - Raptor Product Specifications

WD Raptor® X

SATA Hard Drives

Crystal-clear Lens

Killer Speed

Unsurpassed Reliability

Desktop Hard Drives

Interface

SATA 1.5 Gb/s

Width/Height

3.5-inch/1-inch

Rotational Speed

10,000 RPM

Capacities

150 GB

Model Numbers

WD1500AHFD

From the secret performance labs at WD comes the revolutionary
WD Raptor X SATA hard drive, the first ever drive with a view. Offspring of
the immensely popular WD Raptor, the fastest SATA drive on the planet,
the WD Raptor X focuses a large, crystal-clear lens on the drive to let you
see into the inner workings and witness the drive in action.

Sounds simple? It's not. With over two years of research and development
behind it, the WD Raptor X is engineered to compromise nothing. At
10,000 RPM spin speed, it delivers the killer speed of its illustrious parent,
doubles the capacity to 150 GB, and provides enterprise-class reliability.
This is the ultimate hard drive for PC performance enthusiasts everywhere.

Product Benefits

The world’s first clear cover hard drive

The world’s fastest SATA drive – 10,000 RPM, 4.6 ms average seek time. Bred

from WD Raptor–the gold standard for performance.

Crystalline polycarbonate lens – provides clarity, structural integrity, electrostatic
discharge (ESD) protection, durability, and chemical neutrality necessary for the
highest performance and reliability.

Native Command Queuing (NCQ) – increases data transfer in high-performance
multi-processor, multi-threaded environments.

Rotary Acceleration Feed Forward (RAFF

performance when drives are used in vibration-prone, multi-drive systems. Patent
pending.

™

) – optimizes operation and

Note: Not all products
may be available in all

regions of the world.

5-year limited warranty – nothing has been compromised in quality and reliability
to manufacture these unique hard drives. WD is proud to back them with our
enterprise-class 5-year limited warranty.

The WD Promise

WD understands the importance of the information you save to your hard

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drive and we are committed to protecting that data with exceptionally

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reliable products, advanced data protection technology, and superior

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customer support. No one does more to safeguard your data than WD.

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WD Raptor X

SATA Hard Drives

Physical Specifications

Desktop Hard Drives

150 GB

150,039 MB

Formatted capacity

1

User sectors per drive 293,046,768
WD model number WD1500AHFD

SATA latching connector Yes
Bytes per sector (STD) 512
Form factor 3.5-inch
Interface SATA 1.5 Gb/s
RoHS compliant

2

Yes

Performance Specifications

Average latency 2.99 ms
Buffer 16 MB
Cache

Read Adaptive

Write Yes
Data transfer rate (buffer to host) 1.5 Gb/s (maximum)
Drive ready time 7.0 sec (average), 10 sec (maximum)
Error rate (non-recoverable) <1 in 1015 bits read
LBA support Yes
Rotational speed 10,000 RPM
Seek time

Read 4.6 ms (average)

Write 5.2 ms (average)
Track-to-track seek time

Read 0.3 ms (average), 0.6 (maximum)

Write 0.4 ms (average), 0.75 (maximum)
Start/stop cycles 20,000 minimum
Limited warranty

4

5-year

3

1

One gigabyte (GB) = one billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on

operating environment.

2

WD products manufactured and sold worldwide after August 1, 2005, meet or exceed Restriction of Hazardous Substances

(RoHS) compliance requirements as mandated by the European Union for electrical and electronic products. The RoHS
Directive 2002/95/EC of the European Parliament, which is effective in the EU beginning July 1, 2006, aims to protect
human health and the environment by restricting the use of certain hazardous substances in new equipment, and consists of
restrictions on lead, mercury, cadmium, and other substances.

3

Maximum burst rate running the specified SATA transfer mode.

4

Standard five-year limited warranty, unless otherwise required by law. For extended warranty information,

visit our Web site at support.wdc.com.

For service and literature:

support.wdc.com
www.westerndigital.com

800.ASK.4WDC North America

949.672.7199 Spanish
+800.6008.6008 Asia Pacific
+31.20.4467651 EMEA

Western Digital and WD Raptor are
registered trademarks; and WD, the WD
logo, RAFF, and FIT Lab are trademarks of
Western Digital Technologies, Inc. Other
marks may be mentioned herein that belong
to other companies. Product specifications
subject to change without notice.

© 2007 Western Digital Technologies, Inc.
All rights reserved.

Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.

2879-001164-A02 Aug 2007