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Western Digital debuts My Book Duo with up to 20TB of external storage

Western Digital this week launched the My Book Duo, an external RAID storage system that comes with up to 20 terabytes of storage, and as well as a USB-C port simplifying connections with recent Macs.

The Duo relies on WD's Red network-attached storage drives, with reads up to 360 megabytes per second and additional support for 256-bit AES hardware encryption. Capacity options include 4, 6, 8, 12, 16, or 20 terabytes.

Though equipped with USB-C, bundled cables let the unit work with USB 2.0 and 3.0 computers as well. Two USB-A ports are actually meant for connecting accessories like card readers, USB drives, keyboards, and mice — WD notes that owners can in fact sync and charge a phone.

By default the Duo is NTFS-formatted for Windows systems, but it can be reformatted for use with Macs.

Prices for the My Book Duo start at $259.99 for 4 terabytes and range up to $849.99 for 20 terabytes. B&H is taking orders for all storage capacities with free expedited shipping and no tax collected outside NY and NJ. Amazon is also accepting backorders.