The WD 4TB My Book USB 3.0 External Hard Drive operates using an included AC adapter that runs using 100‎-240 VAC at 47‎-63 Hz‎.‎ Also included is a USB cable and WD backup software‎.‎ This drive is protected by a limited 2‎-year warranty‎.‎

Fast Transfer Rates

My Book premium storage is optimized for the fast data transfer rates‎.‎ Connect this drive to a USB 3.0 port to access and save files at up to 5 Gb/s

Capacity

With up to 4TB capacity‎,‎ there‎'‎s plenty of room to store and protect your precious memories and important files

Automatic Backup Software

WD backup software works in the background to help protect your data using minimal PC resources‎.‎ Select automatic‎,‎ continuous backup to instantly back up your files‎,‎ or select the scheduled backup option to back up your files on your schedule and take control of your backup

Local and Cloud Backup

WD backup software lets you choose when and where you back up your files‎:‎

• Choose scheduled backup to back up your files on a schedule that fits your needs
• Choose automatic‎,‎ continuous backup to make a second copy of your files as they are added or changed and saved
• Use your Dropbox account to back up your files to the cloud

System‎-Level Backup

Acronis True Image WD Edition is an integrated software suite that helps secure all the information on your PC‎.‎ With it‎,‎ you can back up your files on a system level‎,‎ including your operating system‎,‎ securely delete confidential data‎,‎ restore backed up data quickly‎,‎ and restore your system should your computer crash

Universal Connectivity

With this drive‎,‎ you get connectivity with the USB 3.0 devices at speeds up to 5 Gb/s‎,‎ as well as backward compatibility with USB 2.0 devices at speeds up to 480 Mb/s

Password Protection

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

Windows 8 Compatibility

With WD‎'‎s Windows 8 app‎,‎ it‎'‎s easy to discover the digital media stored on your My Book drive with your Windows 8 computer‎.‎ Your content is automatically displayed and organized‎,‎ so you can easily locate and enjoy your photos‎,‎ videos‎,‎ and music