WD My Book Thunderbolt Duo 4TB External Dual Hard Drive Storage

Move data at unprecedented speeds

Finally, a drive that can keep up with your creativity. Video editors and other digital media professionals can do more work in less time with the ground-breaking data transfer speed of the Thunderbolt™ ports on My Book Thunderbolt Duo drive. It offers the indisputably fastest way to get information to and from your external drive.

High-capacity storage

My Book Thunderbolt Duo, dual-drive storage system featuring revolutionary Thunderbolt technology, sets new standards for data transfer speeds and workflow flexibility in an affordable, high-capacity storage system.

User-configurable RAID for speed or double-safe data protection

You can select the RAID mode that’s right for you. Choose RAID 0 (striping) for the performance you need when designing or editing graphic-intensive media files. When the drive is set to RAID 1 (mirroring) it provides double-safe data protection by automatically generating a duplicate copy of your data. Set the drive to JBOD (Just a Bunch Of Disks) to use as two individual drives and select between HFS+J or ExFAT per disk. Ideal for running Windows® OS on a Mac®.

Learn more about RAID

Daisy chain several drives together for even faster speed

The intelligent Thunderbolt connector provides two channels of up to 10Gb/s transfer rate in both directions. This means data can travel both ways without compromising bandwidth. Add to that the power of multiple drives processing data and you get amazing speed.

User-serviceable

Want to upgrade a drive? Simply open the case and replace the existing drive – no screwdriver needed.

Learn more

High-speed multi-tasking

Revolutionary bi-directional Thunderbolt technology delivers unmatched speed for multi-tasking while video editing, 3D rendering and completing other graphics-intensive projects.

WD Drive Utilities

Register your drive, run diagnostics, manage RAID or JBOD modes and more using WD Drive Utilities.