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WD RE2
Enterprise Hard Drives
Drive Specifications
160 GB
1
Formatted capacity
160,041 MB
User sectors per drive
312,581,808
Model number
WD1601ABYS WD3201ABYS WD4000ABYS WD5000ABYS WD7500AYYS
Actuator latch/auto park
Yes
Bytes per sector (STD)
512
Dedicated landing zone
Yes
Form factor
3.5-inch
Interface
SATA 3 Gb/s
Native Command
Yes
Queuing
2
RoHS compliant
Yes
Performance Specifications
Average latency
4.2 ms
Buffer
16 MB
Cache
Read
Adaptive
Write
Yes
Data transfer rate
3
Buffer to host
3 Gb/s (maximum)
4
Buffer to disk
98 MB/s (sustained)
Drive ready time
12.0 sec (average)
Error rate
<1 in 10
(non-recoverable)
LBA support
Yes
5
MTBF
1,200,000 hours
Rotational speed
7200 RPM
Seek time
Full stroke
21 ms (average)
Read
8.9 ms (average)
Track-to-Track
0.6 ms (average)
Limited warranty
5-year
Physical Dimensions
Height
1.028 in (25.4 mm)
Length
5.787 in (147.0 mm)
Width
4.0 in (101.6 mm) ±0.01 in
4
Weight
1.61 lb (0.73 kg) ±10%
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
Effective maximum SATA 3 Gb/s transfer rate.
4
Maximum drive capacity model.
5
After 24 power-on hours.
6
No non-recoverable errors during operating test or after non-operating tests.
7
20 KHz cutoff.
8
Sound power level.
320 GB
400 GB
320,072 MB
400,088 MB
625,142,448
781,422,768
WD4001ABYS WD5001ABYS
Yes
Yes
512
512
Yes
Yes
3.5-inch
3.5-inch
SATA 3 Gb/s
SATA 3 Gb/s
Yes
Yes
Yes
Yes
15
bits read
500 GB
750 GB
500,107 MB
750,156 MB
976,773,168
1,465,149,168
Yes
Yes
512
512
Yes
Yes
3.5-inch
3.5-inch
SATA 3 Gb/s
SATA 3 Gb/s
Yes
Yes
Yes
Yes
Environmental Specification
Shock
Operating (2 ms)
30G (write), 65G (read)
Non-operating (1 ms)
250G
Note: Half-sine wave, measured in 2 ms duration and without
isolation.
Vibration
Operating
2
Random
0.004 g
/Hz (10 to 300 Hz)
2
0.008 g
/Hz (300 to 500 Hz)
Linear
20–300 Hz, 0.75G (0 to peak)
Non-operating
2
Random
0.05 g
/Hz (10 to 300 Hz)
2
0.01 g
/Hz (300 to 500 Hz)
Linear
20–500 Hz, 4.0G (0 to peak)
Operating Temperature and Humidity
Temperature
5°C to 55°C
Humidity
5–95% RH non-condensing
Thermal gradient
20°C/hour (maximum)
Non-Operating Temperature and Humidity
Temperature
–40°C to 65°C
Humidity
5–95% RH non-condensing
Thermal gradient
30°C/hour
Acoustics (Average)
4
7
Idle mode
28 dBA
8
Performance seek mode
34 dBA
Quiet seek mode
30 dBA
6
For service and literature:
support.wdc.com
www.westerndigital.com
800.ASK.4WDC North America
949.672.7199
+800.6008.6008 Asia Pacific
+31.20.4467651 EMEA
Western Digital, WD, and the WD logo are
registered trademarks in the U.S. and other
countries; and the FIT Lab logo 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.
© 2008 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A
2879-701176-A11 Jun 2008
Spanish
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