Western Digital has announced two new external hard disks, the My Book 4 TB and My Book Duo 8 TB. The first features a single 4 TB hard drive, internal power supply and connects through USB 3.0 (backwards compatible with USB 2.0). It is sized 48x135x165 mm and weighs 1.18 kg. As its name suggests, the My Book Duo 8 TB is equipped with two 4 TB drives in a RAID0 configuration. This model also has an integrated power supply. Rather than a USB interface, the Duo uses a Thunderbolt connector. The dimensions of this model are 99x157x165 mm, its weight is 2.26 kg.
The My Book 4 TB has a recommended price of $250 (£155). The Western Digital My Book Duo 8 TB costs no less than $849.99 (£530). This does include a Thunderbolt cable, which are on the expensive side as well.
Western Digital My Book 4 TB.
Western Digital My Book Duo 8 TB.