Western Digital WD GREEN WD20NPVX User manual

WD GREEN™
Mobile Hard Drives
WD Green hard drives are designed for use in systems that
require cool and quiet operation, as secondary drives in PCs,
for external enclosures and other applications for which
low noise and low heat are benecial. These earth-friendly
2.5-inch hard drives are ideal for use whenever energy
efciency is needed.
INTERFACE
SATA 6 Gb/s
SATA 3 Gb/s
WIDTH/HEIGHT
2.75 in./0.59 in.*
69.85 mm/15 mm*
ROTATIONAL SPEED
IntelliPower™
CAPACITIES
1.5 TB to 2 TB
MODEL NUMBERS
WD20NPVX
WD20NPVT
WD15NPVX
WD15NPVT
Note: Not all products may be
available in all regions of the world.
Product Features
WD’s commitment to sustainability – WD’s green initiative goes beyond the
product level, focusing on recycling and improving the cleanliness of the air,
water and land.
Leading the way to green hard
drives – WD led the industry in
creating a new category of hard
drives that use less power and
helps to reduce the world’s energy
demands one computer user at
a time. With over 90 million WD
Green drives sold* customers using
WD Green drives have saved the
planet over 466 million kwh of
power – nearly equaling the annual
power production of a single coal
power plant!
*Data reects approximate drives sold as of March 2012.
Conict-free materials – As a
leader in hard drive manufacturing,
WD proudly guarantees our hard
drives are built with 100% conict-
free raw materials.
Halogen free – In addition to being
RoHS compliant, all WD Green
drives are lead and halogen free,
resulting in less pollutants getting
into our environment.
Reduced rare earths
dependency – WD’s next-
generation WD Green hard drives
are built using less rare earth
minerals.
Reduced power consumption
Best-in-class power management
technology delivers signicant power
savings and solid performance.
Cool and quiet
WD GreenPower Technology™ yields
lower operating temperatures for
increased reliability and low acoustics
perfect for ultra-quiet PCs and
external drives.
NoTouch™ ramp load technology
The recording head never touches
the disk media ensuring signicantly
less wear to the recording head
and media as well as better drive
protection in transit.
IntelliSeek™
Calculates optimum seek speeds to
lower power consumption, noise and
vibration.
Tested for compatibility
We perform tests on hundreds
of systems and a multitude of
platforms in our FIT Lab™ to give our
customers condence that our drives
will work in their systems.
Applications
WD Green hard drives are tested and recommended for use as secondary storage in PCs, external enclosures and applications that require cool and quiet
operation.*
* WD hard drives are designed and tested for use in specic applications and environments. This ensures that your hard drive is compatible with and functions properly in your application.
Our hard drives are warranted against defects in materials and workmanship in the system for which they were designed. Use in systems other than for what the hard drive was
designed could result in compatibility problems that affect proper function, unrelated to material and/or workmanship defects. For best results, be sure to select the appropriate product
for your application by consulting our product spec sheets on our website at www.wd.com or by calling our customer support line where we would be happy to help you through the
selection process.
The WD Advantage
WD puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. This testing ensures our products consistently meet the
highest quality and reliability standards of the WD brand. WD also has a detailed Knowledge Base with more than 1,000 helpful articles as well as helpful software
and utilities. Our customer support lines have longer operational hours to ensure you get the help you need when you need it. Our toll-free customer support lines
are here to help or you can access our WD Support site for additional details.
*Cannot be used in laptop or notebook computers. Designed for PCs and
custom external enclosures. Consult system specications for maximum
allowable drive height before attempting to install.

WD GREEN™
WD BLUE™
Everyday Storage
WD GREEN™
Cool & Quiet Storage
WD BLACK™
Performance Storage
WD Green is part of WD’s complete lineup of internal hard drives.
Learn more about WD Green Mobile hard drives Canada ICES-003 Class B / NMB-003 Classe B
Specications 2 TB 2 TB 1.5 TB 1.5 TB
Model number WD20NPVX WD20NPVT WD15NPVX WD15NPVT
Interface SATA 6 Gb/s SATA 3 Gb/s SATA 6 Gb/s SATA 3 Gb/s
Formatted capacity12,000,398 MB 2,000,398 MB 1,500,301 MB 1,500,301 MB
User sectors per drive 3,907,029,168 3,907,029,168 2,930,277,168 2,930,277,168
Form factor 2.5-inch 2.5-inch 2.5-inch 2.5-inch
Advanced Format (AF) Yes Yes Yes Yes
RoHS compliant2Yes Yes Yes Yes
Performance
Data transfer rates
Interface speed
Internal transfer rate (max)
6 Gb/s
135 MB/s
3 Gb/s
135 MB/s
6 Gb/s
135 MB/s
3 Gb/s
135 MB/s
Cache (MB) 8 8 8 8
Rotational speed (RPM)3IntelliPower IntelliPower IntelliPower IntelliPower
Reliability/Data Integrity
Load/unload cycles4600,000 600,000 600,000 600,000
Non-recoverable read errors per bits
read
<1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014
Limited warranty (years)52222
Power Management
5VDC ±10% (A, peak) 1.00 1.00 1.00 1.00
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
1.7
0.8
0.2
1.7
0.8
0.2
1.7
0.8
0.2
1.7
0.8
0.2
Environmental Specications6
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)
300
650
300
650
300
650
300
650
Acoustics (dBA)7
Idle
Seek (average)
24
25
24
25
24
25
24
25
Physical Dimensions
Height (in./mm, max) 0.59/15 0.59/15 0.59/15 0.59/15
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%) 0.40/0.18 0.40/0.18 0.40/0.18 0.40/0.18
1As 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 transfer rate calculated according to the Serial ATA specication published by the SATA-IO organization as of the date of this specication sheet. Visit
www.sata-io.org for details.
2WD hard drive products manufactured and sold worldwide after June 8, 2011, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the RoHS Directive 2011/65/EU.
3A ne-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both signicant power savings and solid performance. For each WD Green drive model, WD may use a different, invariable RPM.
4Controlled unload at ambient condition.
5 The term of the limited warranty may vary by region. Visit http://support.wd.com/warranty for details.
6 No non-recoverable errors during operating tests or after non-operating tests.
7 Sound power level.
Western Digital
3355 Michelson Drive, Suite 100
Irvine, California 92612
U.S.A.
For service and literature:
http://support.wd.com
www.wd.com
800.ASK.4WDC
(800.275.4932)
North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacic
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa Western Digital, WD, and the WD logo are registered trademarks in the U.S. and
other countries; and WD Blue, WD Green, WD Black, NoTouch, and FIT Lab are
trademarks of Western Digital Technologies, Inc. Other marks may be mentioned
herein that belong to other companies. Product specications subject to change
without notice.
© 2013 Western Digital Technologies, Inc. All rights reserved.
2879-771439-A01 May 2013