Western Digital My Book Essential WDBACW0020HBK-NESN プリント

A single drive with universal compatibility 
today and next-generation speed for 
tomorrow. Use it with USB 2.0 now and 
step up to USB 3.0 speed when you’re 
ready.  

When connected to a SuperSpeed  
USB 3.0 port this drive lets you access 
and save files up to three times faster 
than USB 2.0. Transfer a 2-hour HD 
movie in just three and a half minutes 
instead of 13 minutes.*

For over 20 years, millions of people  
worldwide have trusted their data to WD 
hard drives. We are successful because 
we understand the importance of your 
data and our first concern is keeping that 
data safe. 

You’re in control of your backup. 
Install all the features, select just the 
components you need, or if you prefer, 
choose not to use the software at all.  

Works quietly in the background to 
protect your data using minimal PC 
resources. Whenever you add or change 
a file it’s instantly backed up. 

Gain peace of mind knowing that your 
data is protected from unauthorized 
access with password protection and 
encryption.*
 

We designed a small box and used 
recycled material to minimize waste. We 
encourage you to recycle it.

My Book Essential

External Hard Drives

Western Digital, WD, the WD logo, My Book and Put Your Life On It are registered trademarks in the U.S. and other countries; My Book Essential and WD SmartWare are trademarks of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other 
companies. Pictures shown may vary from actual products. Not all products may be available in all regions of the world. All product and packaging specifications subject to change without notice. The term of your limited warranty depends on the country in which your product was 
purchased. Please visit our web site at http:support.wdc.com/warranty for the detailed terms and conditions of our limited warranty and for a list of the specific countries in these regions.
© 2010 Western Digital Technologies, Inc. All rights reserved. 

 
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 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.
 

 

 

 

 

 

 

 

 

 

 

 

          4178-705127-A00 Oct 2010

USB 3.0 (backward compatible with 
USB 2.0)

Height: 
Depth:  
Width: 
Weight:  

6.5 in (165 mm)  
5.3 in (135 mm)
1.9 in (48 mm)
2.6 lb (1.18 kg)

Formatted NTFS for Windows

®

 XP, 

Windows Vista

®

, Windows 7 

Requires reformatting for Mac OS

®

 X 

Leopard

®

, Snow Leopard

® 

3 TB
2 TB

1.5 TB

1 TB

WDBACW0030HBK 
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External hard drive
USB cable
AC adapter
WD SmartWare software
Quick Install Guide

Data transfer rate:

1

 Up to 480 Mb/sec 

in USB 2.0 mode and up to 5 Gb/sec 
in USB 3.0 mode

Operating temperature: 5°C to 35°C
Non-op. temperature: –20°C to 65°C

2 years 
2 years
3 years
3 years

Americas
EMEA
APAC
Japan

With USB 3.0

41 seconds

With USB 2.0

1 minute 53 seconds

With USB 3.0

3 minutes 11 seconds

With USB 2.0

7 minutes 42 seconds

With USB 3.0

3 minutes 32 seconds

With USB 2.0

13 minutes 28 seconds