WD - My Book Thunderbolt Duo 4TB External Dual-Drive Hard Drive - Silver

4TB storage capacity

Accommodates large media files and workflows for managing and backing up your projects.

Dual Thunderbolt interface

Lets you daisy chain up to 7 devices or peripherals for efficient multitasking.

Data transfer rates up to 250MB/sec.

For exceptional speed during video-editing, 3D-rendering and other graphics-intensive projects.

Selectable system modes

Including RAID 0 (striping), RAID 1 (mirroring) and JBOD (Just a Bunch of Disks) provide flexible options for data protection and file management.

RAID 0 (striping) mode

Offers the performance you need when designing or editing graphics-intensive media files.

RAID 1 (mirroring) mode

Provides data protection by automatically generating a duplicate copy of your data.

JBOD (Just a Bunch of Disks) mode

Lets you use the storage system as 2 individual drives and select between HFS+J or exFAT for each disk.

WD Utilities software

Lets you register your drive, run diagnostics, manage RAID or JBOD modes and more.

Low operating temperature

For extended drive life and improved data reliability.

User-serviceable casing

Opens easily, so you can remove a filled-up drive and install a new one without using tools.

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

Feet

Kensington security lock

AC power adapter, WD Drive Utilities software

Owner's manual