WD Green Desktop Series Spec Sheet WD20EZRX 2879 771438
User Manual: GREEN WD20EZRX
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WD Green™
Desktop Hard Drives
WD Green storage is designed specically with reliability in
mind for an increased drive lifespan. The advantage of being
cool and quiet impacts overall reliability while reduced heat
output, decreased power consumption, quiet acoustics, and
best-in-class power management make WD Green a leader
when compared to the competition.
INTERFACE
SATA 6 Gb/s
FORM FACTOR
3.5-inch
ROTATIONAL SPEED
IntelliPower™
CAPACITIES
500 GB to 4 TB
MODEL NUMBERS
WD40EZRX WD15EZRX
WD30EZRX WD10EZRX
WD20EZRX WD5000AZRX
Applications
WD Green hard drives are tested and recommended for primary use in desktop and All-in-One PCs, as secondary storage for archiving, in external cases or as
reliable backup storage. Desktop drives are not recommended for use in RAID environments. Please consider using WD Red™ hard drives for home and small
ofce 1-5 bay NAS systems and WD Datacenter hard drives for rackmount and NAS systems with more than 5 bays.*
* WD hard drives are designed and tested for use in specic 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.
Product Features
The advantage of cool & quiet
Heat has a large impact on the
overall reliability of a HDD’s life over
time. It can also lead to increased
power consumption, the requirement
of additional fans and increased fan
operation, increased noise levels and
the increased chance of failure.
WD Green drives come equipped
with WD GreenPower Technology™
which allows the drive to operate
cooler with increased overall reliability.
Power management with
performance
Best-in-class power management,
reduced heat output, and next-
generation technologies such as
IntelliSeek™ offer a perfect balance of
performance and power, making
WD Green a leader in performance
when compared to the competition ’s
4 TB HDD.
Reliability with an increased
lifespan
Quiet acoustics, reduced vibration
and advanced 4K HDD formatting
makes WD Green a stronger solution
when compared to the competition
and perfect for PCs and external
drive applications. WD Green also
features a Dual Stage Actuator, which
delivers higher precision motion
for 2X the data performance and
increases drive reliability.
Capacity storage
Large capacity offerings of up
to 4 TBs help expand customer
capabilities and application usage
of WD Green including primary
installations in desktop PCs, as
secondary storage in external cases
or as reliable backup storage.
Next-generation technology
Reduced power consumption,
improved data tracking, and
WD GreenPower Technology all
help to improve the overall reliability
of WD Green making it an efcient
solution that lowers your total cost of
ownership. NoTouch™ Ramp Load
Technology also protects the drive by
ensuring the recording head never
touches the disk media, reducing
wear and tear to the head and
increases drive reliability.
Easy upgrade
Acronis® True Image™ , available
as a download on the WD Support
website, enables you to clone or
copy all your data to a new drive
so you don’t have to reinstall your
operating system and applications to
get all the benets of a new drive.
WD Green™
Learn more about WD Green Desktop hard drives 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.wd.com
www.wd.com
800.ASK.4WDC
(800.275.4932)
North America
800.832.4778 Spanish
+800.6008.6008 Asia Pacic
00800.27549338 Europe
(toll free where available)
+31.880062100 Europe/Middle East/Africa Western Digital, WD, and the WD logo are registered trademarks of Western
Digital Technologies, Inc. in the U.S. and other countries; WD Green, WD Red,
IntelliPower, NoTouch, WD GreenPower Technology, and FIT Lab are trademarks
of Western Digital Technologies, Inc. in the U.S. and other countries. Other marks
may be mentioned herein that belong to other companies. Product specications
subject to change without notice.
© 2014 Western Digital Technologies, Inc. All rights reserved.
2879-771438-A06 Feb 2014
Specications 4 TB 3 TB 2 TB 1.5 TB 1 TB 500 GB
Model number1WD40EZRX WD30EZRX WD20EZRX WD15EZRX WD10EZRX WD5000AZRX
Interface SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s SATA 6 Gb/s
Formatted capacity24 TB 3 TB 2 TB 1 TB 1 TB 500 GB
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Advanced Format (AF) Yes Yes Ye s Yes Yes Yes
RoHS compliant3Yes Yes Ye s Yes Yes Yes
Performance
Data transfer rate (max)
Buffer to host
Host to/from drive (sustained)
6 Gb/s
150 MB/s
6 Gb/s
147 MB/s
6 Gb/s
147 MB/s
6 Gb/s
147 MB/s
6 Gb/s
150 MB/s
6 Gb/s
150 MB/s
Cache (MB) 64 64 64 64 64 64
Rotational speed (RPM)4IntelliPower IntelliPower IntelliPower IntelliPower IntelliPower IntelliPower
Reliability/Data Integrity
Load/unload cycles5300,000 300,000 300,000 300,000 300,000 300,000
Non-recoverable read errors per bits
read
<1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014
Limited warranty (years)62 2 2 2 2 2
Power Management
12VDC ±10% (A, peak) 1.75 1.73 1.73 1.73 1.2 1.2
Average power requirements (W)
Read/Write
Idle
Standby/Sleep
4.5
3.3
0.4
4.1
3.0
0.4
4.1
3.0
0.4
4.1
3.0
0.4
3.3
2.5
0.4
3.3
2.5
0.4
Environmental Specications7
Temperature (°C)8
Operating
Non-operating
0 to 60
-40 to 70
0 to 60
-40 to 70
0 to 60
-40 to 70
0 to 60
-40 to 70
0 to 60
-40 to 70
0 to 60
-40 to 70
Shock (Gs)
Operating (2 ms, read)
Operating (2 ms, read/write)
Non-operating (1 ms)
30
65
250
30
65
250
30
65
250
30
65
250
30
65
350
30
65
350
Average acoustics (dBA)9
Idle
Seek mode
25
28
23
27
23
27
23
27
21
24
21
22
Physical Dimensions
Height (in./mm, max) 1.028/26.1 1.028/26.1 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 5.787/147 5.787/147
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6 4/101.6 4/101.6 4/101.6
Weight (lb./kg, ± 10%) 1.50/0.68 1.40/0.64 1.32/0.60 1.32/0.60 0.99/0.45 0.99/0.45
1 Not all products may be available in all regions of the world.
2 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 specication published by the SATA-IO organization as of the date of this specication
sheet. Visit www.sata-io.org for details.
3 WD 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.
4 A ne-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both signicant power savings and solid performance. For each WD Green drive model, WD may use a different, invariable RPM.
5 Controlled unload at ambient condition.
6 The term of the limited warranty may vary by region. Visit http://support.wd.com/warranty for details.
7 No non-recoverable errors during operating tests or after non-operating tests.
8 On the base casting.
9 Sound power level.
