Western Digital RE EIDE Hard Drive WD2500SB-AN 전단

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WD2500SB-AN
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WD RE
SATA/EIDE Hard Drives
For service and literature:
support.wdc.com
www.westerndigital.com
Western Digital and WD are registered 
trademarks; and the WD logo, Active 
Power Save, FIT Lab, FlexPower, and 
SecureConnect 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
2879-001119-A11 Jun 2006
800.ASK.4WDC
North America
949.672.7199
Spanish
+800.6008.6008
Asia Pacific
+31.20.4467651
EMEA
Drive Specifications
SATA Hard Drives 
EIDE Hard Drives 
160 GB
250 GB
320 GB
Formatted capacity
1
 
164,696 MB
251,000 MB
320,072 MB
User sectors per drive
321,672,960
490,234,752
625,142,448
Model number
WD1600YS
WD2500YS
WD3200YS
Actuator latch/auto park
Yes
Bytes per sector (STD)
512
Dedicated landing zone
Yes
Form factor
3.5-inch
Interface
SATA 3.0 Gb/s
RoHS compliant
 Yes
160 GB
250 GB
320 GB
Formatted capacity
1
 
164,696 MB
251,000 MB
320,072 MB
User sectors per drive
321,672,960
490,234,752
625,142,448
Model number
WD1600SB
WD2500SB
WD3200SB
Actuator latch/auto park
Yes
Bytes per sector (STD)
512
Dedicated landing zone
Yes
Form factor
3.5-inch
Interface
EIDE
RoHS compliant
 Yes
1 gigabyte (GB)=1 billion 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 Ultra ATA transfer mode.
4
80% duty cycle with 100% power on hours.
5
Five-year standard warranty unless otherwise required by law. For extended warranty information, visit our Web site at support.wdc.com.
Performance Specifications
SATA Hard Drives 
EIDE Hard Drives 
Average latency
4.2 ms
Buffer
16 MB
Cache
Read
Adaptive
Write
Yes
Data transfer rate
Buffer to host
3.0 Gb/s (maximum)
Buffer to disk
61 MB/s (sustained)
Drive ready time
9.0 sec (average)
Error rate (non-recoverable) <1 in 10
14
 bits read
LBA support
Yes
MTBF
 1,000,000 
hours
Rotational speed
7200 RPM
Seek times
Full stroke read
21 ms (average)
Read
8.9 ms (average)
Track-to-track
2.0 ms (average)
Warranty
 5-year
Average latency
4.2 ms
Buffer
8 MB 
Cache
Read
Adaptive
Write
Yes
Data transfer rate
Buffer to host
 10
MB/s
Buffer to disk
61 MB/s (sustained)
Drive ready time
7.0 sec (average)
Error rate (non-recoverable) <1 in 10
14
 bits read
IORDY support
Yes
LBA support
Yes
Master/slave support
Yes
MTBF
 1,000,000 
hours
Rotational speed
7200 RPM
Seek times
Full stroke read
21 ms (average)
Read
8.9 ms (average)
Track-to-track
2.0 ms (average)
Warranty
 5-year