WD AV-25
Western Digital, WD, and the WD logo are
registered trademarks in the U.S. and other
countries; and SilkStream 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.
© 2010 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630
U.S.A.
2879-771362-A02 May 2010
For service and literature:
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
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
Maximum burst rate running the Mode 5 Ultra ATA transfer mode.
3
Controlled unload at ambient condition.
4
The term of the limited warranty may vary by region. Visit support.wdc.com/warranty for details.
5
No non-recoverable errors during operating tests or after non-operating tests.
6
Sound power level.
Specifications
500 GB
320 GB
250 GB
160 GB
Model number
WD5000BUDT
WD3200BUDT
WD2500BUDT
WD1600BUDT
Interface
SATA 3 Gb/s
SATA 3 Gb/s
SATA 3 Gb/s
SATA 3 Gb/s
Formatted capacity
1
500,107 MB
320,072 MB
250,059 MB
160,041 MB
User sectors per drive
976,773,168
625,142,448
488,397,168
312,581,808
Advanced Format Technology
Yes
Yes
Yes
Yes
Form factor
2.5-inch
2.5-inch
2.5-inch
2.5-inch
Performance
Data transfer rate (max)
2
Buffer to host
Host to/from drive (sustained)
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
3 Gb/s
108 Mbytes/s
Cache (MB)
32
32
32
32
Average latency (ms)
5.5
5.5
5.5
5.5
Rotational speed (RPM)
5400
5400
5400
5400
Average drive ready time (sec)
4
4
4
4
Reliability/Data Integrity
Load/unload cycles
3
600,000
600,000
600,000
600,000
Non-recoverable read errors
per bits read
<1 in 10
14
<1
in
10
14
<1
in
10
14
<1 in 10
14
Limited warranty (years)
4
3
3
3
3
Power Management
5VDC ±10% (A, peak)
0.950
0.950
0.950
0.950
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
1.6
0.65
0.20
1.6
0.85
0.20
1.6
0.85
0.20
1.6
0.85
0.20
Environmental Specifications
5
Temperature (°C)
Operating
Non-operating
0 to 60
-40 to 65
0 to 60
-40 to 65
0 to 60
-40 to 65
0 to 60
-40 to 65
Shock (Gs)
Operating (2 ms, read)
Non-operating (2 ms)
350
1000
350
1000
350
1000
350
1000
Average acoustics (dBA)
6
Idle mode
Average seek mode
22
25
22
25
22
25
22
25
Physical Dimensions
Height (in./mm, max)
8
0.374/9.50
0.374/9.50
0.374/9.50
0.374/9.50
Length (in./mm, max)
3.94/100.20
3.94/100.20
3.94/100.20
3.94/100.20
Width (in./mm, ± .01 in.)
2.75/69.85
2.75/69.85
2.75/69.85
2.75/69.85
Weight (lb./kg, ± 10%)
0.22/0.10
0.22/0.10
0.22/0.10
0.22/0.10
