Western Digital WD10EARX, WD15EARS, WD15EARS-60MVWB0, WD20EARX, WD20EARS User Manual

™

WD Caviar® Green

Desktop Hard Drives

As hard drive capacities increase, the power required to run

those drives increases as well. WD Caviar Green drives

make it possible for energy-conscious customers to build

systems with higher capacities and the right balance of

system performance, ensured reliability, and energy

conservation.

INTERFACE

SATA

WIDTH/HEIGHT

3.5-inch/1-inch

ROTATIONAL SPEED

IntelliPower™

CAPACITIES

750 GB to 3 TB

MODEL NUMBERS

WD30EZRX WD20EARS WD7500AARX
WD30EZRSDTL WD15EARX WD7500AARS
WD25EZRX WD15EARS WD7500AADS
WD25EZRSDTL WD10EARX
WD20EARX WD10EARS

Note: Not all products may be
available in all regions of the world.

Product Features

Massive capacity

WD Caviar Green SATA drives now
deliver up to 3 TB of storage on a
single drive.

Reduced power consumption

WD has reduced power consumption
making it possible for our energy­conscious customers to build systems
with higher capacities and the right
balance of system performance,
ensured reliability, and
energy conservation.

Cool and quiet

Drives with WD GreenPower
Technology™ yield lower operating
temperatures for increased reliability
and low acoustics for ultra-quiet PCs
and external drives.

Perfect for external drives

External drive manufacturers can
eliminate the need for a fan in a
high-capacity product with a
WD Caviar Green drive, the coolest
and quietest in its class.

IntelliPower

A fine-tuned balance of spin speed,
transfer rate, and caching algorithms
designed to deliver both significant
power savings and solid performance.
Additionally, WD Caviar Green drives
consume less current during startup
allowing lower peak loads on systems
as they are booted.

IntelliSeek™

Calculates optimum seek speeds to
lower power consumption, noise,
and vibration.

NoTouch™ ramp load
technology

The recording head never touches the
disk media ensuring significantly less
wear to the recording head and media
as well as better drive protection
in transit.

Advanced Format (AF)

Technology being adopted by WD and
other drive manufacturers as one of
multiple ways to continue growing
hard drive capacities. AF is a more
efficient media format that enables
increased areal densities. (RX, RS, and
RSDTL models only)

Applications



Desktop PCs, high capacity external storage, and NAS.



Desktop / Consumer RAID Environments - WD Caviar Green Hard Drives are tested and recommended for use in consumer-type RAID applications (RAID-0 /
RAID-1).

- Business Critical RAID Environments – WD Caviar Green Hard Drives are not recommended for and are not warranted for use in RAID environments utilizing Enterprise HBAs and/or
expanders and in multi-bay chassis, as they are not designed for, nor tested in, these specific types of RAID applications. For all Business Critical RAID applications, please consider WD’s
Enterprise Hard Drives that are specifically designed with RAID-specific, time-limited error recovery (TLER), are tested extensively in 24x7 RAID applications, and include features like
enhanced RAFF technology and thermal extended burn-in testing.

WD Caviar Green

1

Specifications

Model number WD30EZRX WD30EZRSDTL WD25EZRX WD25EZRSDTL WD20EARX WD20EARS
Interface SATA 6 Gb/s SATA 3 Gb/s SATA 6 Gb/s SATA 3 Gb/s SATA 6Gb/s SATA 3 Gb/s
Formatted capacity 3,000,592 MB 3,000,592 MB 2,500,495 MB 2,500,495 MB 2,000,398 MB 2,000,398 MB
User sectors per drive 5,860,533,168 5,860,533,168 4,883,781,168 4,883,781,168 3,907,029,168 3,907,029,168
Advanced Format (AF) Yes Yes Yes Yes Yes Yes
SATA latching connector Yes Yes Yes Yes Yes Yes
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch
RoHS compliant

Performance

Data transfer rate (max)

Buffer to host
Host to/from drive (sustained)

Cache (MB) 64 64 64 64 64 64
Rotational speed (RPM) IntelliPower IntelliPower IntelliPower IntelliPower IntelliPower IntelliPower

Reliability/Data Integrity

Load/unload cycles
Non-recoverable read errors

per bits read
Limited warranty (years)

Power Management

12VDC (A, peak) 1.78 1.78 1.78 1.78 1.75 1.75
Average power requirements (W)

Read/write
Idle
Standby
Sleep

Environmental Specifications

Temperature (°C)

Operating
Non-operating

Shock (Gs)

Operating (2 ms, read)
Operating (2 ms, read/write)
Non-operating (1 ms)

Average acoustics (dBA)

Idle mode
Performance seek mode
Quiet seek mode

Physical Dimensions

Height (in./mm, max) 1.028/25.4 1.028/25.4 1.028/25.4 1.028/25.4 1.028/25.4 1.028/25.4
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%) 1.61/0.73 1.61/0.73 1.61/0.73 1.61/0.73 1.40/0.64 1.40/0.64

2

3

4

6

3 TB 3 TB 2.5 TB 2.5 TB 2 TB 2 TB

Yes Yes Yes Ye s Ye s Yes

6 Gb/s
123 MB/s

300,000 300,000 300,000 300,000 300,000 300,000

14

<1 in 10

333333

6

5.5

0.8

0.8

5

0 to 60

-40 to 70

30
65
250

24
29
25

3 Gb/s
123 MB/s

<1 in 10

6

5.5

0.8

0.8

0 to 60

-40 to 70

30
65
250

24
29
25

6 Gb/s
123 MB/s

14

<1 in 10

6

5.5

0.8

0.8

0 to 60

-40 to 70

30
65
250

24
29
25

14

3 Gb/s
123 MB/s

<1 in 10

6

5.5

0.8

0.8

0 to 60

-40 to 70

30
65
250

24
29
25

6 Gb/s
110 MB/s

14

<1 in 10

5.3

3.3

0.7

0.7

0 to 60

-40 to 70

30
65
250

24
29
25

14

3 Gb/s
110 MB/s

<1 in 10

5.3

3.3

0.7

0.7

0 to 60

-40 to 70

30
65
250

24
29
25

14

1

As used for storage capacity, one megabyte (MB) = one million bytes, on e 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, mega byte 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

WD hard drive products manufactured and sold worldwide after June 1, 2006, meet or exceed Restriction of Hazardous Substances (RoHS) compliance requirements as mandated by the European Union for electrical and electronic products. The RoHS Directive 2002/95/EC of the

European Parliament, which is effective in the EU beginning July 1, 2006, aims to protect human health and the environment by restricting the use of certain hazardous substances in new equipment, and consists of restrictions on lead, mercury, cadmium, and other substances.

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.

-2-