WD AV-25, WD1600BUDT, WD2500BUDT, WD3200BUDT, WD5000BUDT Product Specifications
WD AV-25
AV Hard Drives
WD AV-25 2.5-inch SATA hard drives are specially
engineered to offer cool quiet operation while providing
maximum reliability in 24x7 always-on environments.
With support for up to five simultaneous HD video
streams, these drives are perfect for DVRs, set-top
boxes and digital video surveillance.
INTERFACE
SATA
MODEL NUMBERS
WD5000BUDT WD2500BUDT
WD3200BUDT WD1600BUDT
Product Features
24x7 reliability
These drives are designed to last in
always-on streaming digital
audio/video environments such as
DVR/PVR, digital video surveillance
and other demanding multimedia
applications.
Advanced Format
Technology
Leading edge technology delivers
improved video quality and AV
performance through enhanced
error correction capability.
WIDTH/HEIGHT
2.75 in./0.37 in.
(69.85 mm/9.5 mm)
SilkStream™ technology
Optimized for smooth, continuous
digital video playback of up to five
simultaneous HD streams.
SilkStream is compatible with the
ATA streaming command set so AV
customers can use standard
streaming management and error
recovery options .
Ultra-cool operation
A cool drive is a more reliable drive.
WD continues to develop new and
innovative ways to keep drives cool
while they are operating.
ROTATIONAL SPEED
5400 RPM
Quiet
Noise levels have been minimized to
less than one sone* - virtually below
the threshold of human hearing.
Low power consumption
The drive draws less than 2 Watts
while operating and a mere 4.75
Watts during spin up.
CAPACITIES
160 to 500 GB
Note: Not all products may
be available in all regions of
the world.
1 million hours MTBF
Best-in-class reliability for
small-form factor AV storage.**
Preemptive Wear Leveling
(PWL)
The drive arm frequently sweeps
across the disk to reduce uneven
wear on the drive surface common
to audio video streaming
applications.
* A sone is a subjective unit of loudness as perceived by a
person with normal hearing.
** Based upon dual tuner system operating in typical 30°C air
ambient environment.
WD AV-25
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)
Buffer to host
Host to/from drive (sustained)
2
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)4444
Reliability/Data Integrity
Load/unload cycles
Non-recoverable read errors
per bits read
Limited warranty (years)
3
4
600,000 600,000 600,000 600,000
14
<1 in 10
<1 in 1014 <1 in 1014 <1 in 1014
3333
Power Management
5VDC ±10% (A, peak) 0.950 0.950 0.950 0.950
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
Environmental Specifications
Temperature (°C)
Operating
Non-operating
Shock (Gs)
Operating (2 ms, read)
Non-operating (2 ms)
Average acoustics (dBA)
Idle mode
Average seek mode
Physical Dimensions
Height (in./mm, max)
6
8
1.6
0.65
0.20
5
0 to 60
-40 to 65
350
1000
22
25
1.6
0.85
0.20
0 to 60
-40 to 65
350
1000
22
25
1.6
0.85
0.20
0 to 60
-40 to 65
350
1000
22
25
1.6
0.85
0.20
0 to 60
-40 to 65
350
1000
22
25
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
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 SATAIO 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.
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:
support.wdc.com
www.westerndigital.com
800.ASK.4WDC North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacific
00800.27549338 Europe
+31.880062100 Europe/Middle East/Africa
(toll free where available)
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