The perfect backup system for your irreplaceable data,
WD’s My Book Mirror Edition dual-drive storage system
offers RAID-based continuous data protection and user-
serviceability. It is the storage solution of choice for
photographers, home users, small offices, and anyone
looking for extra assurance that their data is safe.
• RAID mirroring – This system automatically and continuously
duplicates your data. If one drive in this two-drive system ever
fails, the system continues to run and your data is safe. How’s
that for peace of mind?
• Automatic backup software – Back up your computer—just set it
and forget it. Every time you save a change it's backed up and then
mirrored on the second drive for the ultimate in data protection.
• Cooler, quieter, eco-friendlier – Designed to use only WD
drives with GreenPower
™
technology, this system, with its
efficient convection cooling architecture, fan-less design, and
power-saving mode, is reliably cool, remarkably quiet, and
consumes up to 33% less power* than standard systems.
My Book
Mirror Edition
Dual-drive with RAID Mirroring
Automatic Backup Software
Cooler, Quieter, Eco-friendlier
®
™
The Safest Place
for Your Data
Dual-drive Storage System
“In my field, staying on top
requires keeping 100% of my
clients’ critical data secure.”
–Thomas Kim
Tax Accountant
* Tests based on comparison between a 1 TB dual-drive system using 7200 RPM drives and a 1 TB dual-drive system
using WD's GreenPower drives.
Interface
USB 2.0
Dimensions
Height: 6.54 in (166 mm)
Depth: 6.06 in (154 mm)
Width: 3.87 in (98 mm)
Weight: 5.2 lb (2.63 kg)
System Compatibility
Windows
®
2000/XP/Vista
Mac
®
OS X 10.4.11+, 10.5.2+
Compatibility may vary depending on user’s
hardware configuration and operating system.
Capacities and Model Numbers
1 TB WDH2U10000
2 TB WDH2U20000
Limited Warranty
3 years
Kit Contents
Dual-drive storage system
USB cable
AC adapter
Software CD
Quick Install Guide
Product Specifications
Data transfer rate
1
480 Mb/s
(maximum)
Temperature:
Operating 5°C to 35°C
41 F to 95 F
Non-operating -20°C to 65°C
-4 F to 149 F
Western Digital, WD, the WD logo, Put Your Life On It and My Book are registered trademarks in the U.S. and other countries; Mirror Edition and GreenPower 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 is for 3-years, unless otherwise
required by law. Please visit our web site at support.wdc.com/warranty for the detailed terms and conditions of our limited warranty.
© 2008 Western Digital Technologies, Inc. All rights reserved.
One gigabyte (GB) = one billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.
RAID 0 (striped) accesses the full capacity of the drives. RAID 1 (mirrored) accesses half of the total capacity for data protection.
Here are some examples of how much you can store.
4178-705018-A00 May 2008
Photos
Hours DVD
Songs
or
or
142,000 285,000 285,000 570,000
220 440 440 880
125,000 250,000 250,000 500,000
up to
up to
or or
or
up to
or
or
up to
or
oror
Examples of the number of photos, songs, videos and any other files that can be stored on a hard drive are provided for illustrative purposes only. These
numbers reflect a dual drive storage system using the full capacity (RAID 0). Your results will vary based on file size and format, settings, features,
software and other factors.
My Book Mirror Edition
Dual-drive Storage System
1
A USB 2.0 host and USB 2.0 certified cable are required to
obtain Hi-Speed USB Performance.
Your data
saved.
Your data
saved
again.
RAID 1 (Mirrored)
This system automatically
and continuously duplicates
your data for the ultimate
data protection.
1TB 1TB 2TB 2TB
(RAID 1) (RAID 0) (RAID 1) (RAID 0)
/
