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WD RE4
Specifications
1
2 TB 1 TB 500 GB 250 GB
Model number WD2003FYYS WD1003FBYX WD5003ABYX WD2503ABYX
Interface SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s SATA 3 Gb/s
Formatted capacity 2 TB 1 TB 500 GB 251 GB
User sectors per drive 3,907,029,168 1,953,525,168 976,773,168 490,350,672
Native command queuing Yes Yes Yes Yes
SATA latching connector Yes Yes Yes Yes
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
3 Gb/s
138 MB/s
3 Gb/s
128 MB/s
3 Gb/s
128 MB/s
3 Gb/s
128 MB/s
Cache (MB) 64 64 64 64
Rotational speed (RPM) 7200 7200 7200 7200
Average drive ready time (sec) 21 18 14 14
Configuration/Organization
Heads/disks 8/4 4/2 2/1 1/1
Bytes per sector (STD) 512 512 512 512
Reliability/Data Integrity
Load/unload cycles
2
600,000 600,000 600,000 600,000
Non-recoverable read errors per bits read <1 in 10
15
<1 in 10
15
<1 in 10
15
<1 in 10
15
Limited warranty (years)
3
5555
Power Management
12VDC (A, max) 1.8 1.6 2.25 2.25
Average power requirements (W)
Read/Write
Idle
Standby
Sleep
10.7
8.2
1.3
1.3
7.9
5.9
0.7
0.7
6.4
4.5
0.8
0.8
6.4
4.5
0.8
0.8
Environmental Specifications
4
Temperature (°C)
Operating
Non-operating
5 to 55
-40 to 70
5 to 55
-40 to 70
5 to 55
-40 to 70
5 to 55
-40 to 70
Shock (Gs)
Operating (2 ms, read/write)
Operating (2 ms, read)
Non-operating (2 ms)
30
65
300
30
65
300
30
65
350
30
65
350
Average acoustics (dBA)
5
Idle mode
Performance seek mode
Quiet seek mode
29
34
30
28
33
29
27
30
29
27
30
29
Physical Dimensions
Height (in./mm, max) 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1
Length (in./mm, max) 5.787/147 5.787/147 5.787/147 5.787/147
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.66/0.75 1.49/0.68 0.99/0.45 0.99/0.45
1
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576
bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second (Gb/s) = one billion bits per second. Effective maximum SATA 3 Gb/s transfer rate calculated according to the Serial ATA specification published by the SATA-
IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
2
Controlled unload at ambient condition
3
The term of the limited warranty may vary by region. Visit support.wdc.com/warranty for details.
4
No non-recoverable errors during operating tests or after non-operating tests.
5
Sound power level.
Canada ICES-003 Class B / NMB-003 Classe B
Western Digital
3355 Michelson Drive, Suite 100
Irvine, California 92612
U.S.A.
For service and literature:
http://support.wdc.com
www.westerndigital.com
800.ASK.4WDC North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacific
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa
Western Digital, WD, the WD logo, and Put Your Life On It are registered trademarks in the U.S. and other countries; and NoTouch, IntelliSeek, StableTrac, 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.
© 2011 Western Digital Technologies, Inc. All rights reserved.
2879-701338-A06 Sep 2011