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WD Raptor
Enterprise Hard Drives
Drive Specifications
1
Formatted capacity
User sectors per drive
WD model number
SATA latching connector
Bytes per sector (STD)
Form factor
Interface
2
RoHS compliant
Performance Specifications
Average latency
Buffer
Cache
Read
Write
Data transfer rate (buffer to host) 1.5 Gb/s (maximum)
Drive ready time
Error rate (non-recoverable)
LBA support
MTBF
Rotational speed
Seek time
Read
Write
Track-to-track seek
Read
Write
Start/stop cycles
4
Limited warranty
1
1 gigabyte (GB)=1 billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity
varies depending on operating environment.
2
WD complies with the Reduction of Hazardous Substances (RoHS) Directive 2002/95/EC of the
European Parliament, which is effective in the EU beginning July 1, 2006. RoHS 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
Five-year limited warranty unless otherwise required by law. For extended warranty information,
visit our Web site at support.wdc.com.
36 GB
74 GB
150 GB
37,019 MB
74,356 MB
150,039 MB
72,303,840
145,226,112
293,046,768
WD360ADFD
WD740ADFD
WD1500ADFD
Yes
512
3.5-inch
SATA 1.5 Gb/s
Yes
2.99 ms
16 MB
Adaptive
Yes
3
7.0 sec (average), 10.0 sec (maximum)
15
<1 in 10
bits read
Yes
1,200,000 hours
10,000 RPM
4.6 ms (average)
5.2 ms (average)
0.3 ms (average), 0.6 (maximum)
0.4 ms (average), 0.75 (maximum)
20,000 minimum
5-year
For service and literature:
support.wdc.com
www.westerndigital.com
ASK
WDC
North America
800.
.4
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, FIT Lab, FlexPower, and RAFF 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.
© 2006 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.
2879-001165-A02 Aug 2007
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