Western Digital WD Red 2TB + WD Care Extended WD20EFRX?CAREEXT 产品宣传页

产品代码

WD20EFRX?CAREEXT

WD Red

™

Learn more about WD Red hard drives

Canada ICES-003 Class B / NMB-003 Classe B

Specifications

4 TB

3 TB

2 TB

1 TB

750 GB

Model number

WD40EFRX

WD30EFRX

WD20EFRX

WD10EFRX

WD10JFCX

WD7500BFCX

Interface

SATA 6 Gb/s

Formatted capacity

4 TB

3 TB

2 TB

1 TB

750 GB

Form factor

3.5-inch

2.5-inch

Advanced Format (AF)

Yes

RoHS compliant

Yes

Performance
Data transfer rate (max)

Interface speed

Internal transfer rate

6 Gb/s

150 MB/s

6 Gb/s

147 MB/s

6 Gb/s

147 MB/s

6 Gb/s

150 MB/s

6 Gb/s

144 MB/s

6 Gb/s

144 MB/s

Cache (MB)

Rotational speed (RPM)

IntelliPower

Reliability/Data Integrity
Load/unload cycles

600,000

Non-recoverable read errors per bits

read

<1 in 10

MTBF (hours)

1,000,000

Limited warranty (years)

Power Management
12VDC ±10% (A, peak)

1.75

1.73

1.20

5VDC ±10% (A, peak)

1.00

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

3.3

2.5

0.4

1.4

0.6

0.2

1.4

0.6

0.2

Environmental Specifications

Temperature (°C)

Operating

Non-operating

0 to 70

-40 to 70

0 to 70

-40 to 70

0 to 70

-40 to 70

0 to 70

-40 to 70

0 to 65

-40 to 65

0 to 65

-40 to 65

Shock (Gs)

Operating (2 ms, read/write)

Operating (2 ms, read)

Non-operating (2 ms)

250

350

400

1000

400

1000

Acoustics (dBA)

Idle

Seek (average)

Physical Dimensions
Height (in./mm)

1.028/26.1

0.374/9.5

Length (in./mm)

5.787/147

3.94/100.2

Width (in./mm, ± .01 in.)

4/101.6

2.75/69.85

Weight (lb./kg, ± 10%)

1.50/0.68

1.40/0.64

1.32/0.60

0.99/0.45

0.25/0.115

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

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.

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.

A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings and solid performance. For each drive model, WD may use a different, invariable RPM.

Controlled unload at ambient condition.

Based on a typical NAS product environment under normal operating conditions.

The term of the limited warranty may vary by region. Visit http://support.wd.com/warranty for details.

No non-recoverable errors during operating tests or after non-operating tests.

On the base casting.

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 Pacific

00800.27549338

Europe

(toll free where available)

+31.880062100

Europe/Middle East/Africa

WD Red premium support
855.55.WDRED

(855.559.3733)

North America

+800.55593733

Europe/Middle East/Africa/

Asia Pacific

Western Digital, WD, and the WD logo are registered trademarks in the U.S. and other

countries; WD Blue, WD Green, WD Black, WD Red, NASware, REDvolutionary,

3D Active Balance, 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 specifications subject to change without notice.

2879-800002-A02 Feb 2014