Citing “insatiable” demand for ever-increasing amounts of mass storage on the desktop end, Western Digital has joined a small but growing number of vendors offering external 2TB storage units. While not carrying a 2TB HDD inside, which would be fascinating, Western Digital's update to their My Book line will give 2TB of total space to someone who really wants it.

An upgrade from their existing 750GB My Book Models, the unit relies on multiple internal hard drives that can be configured to work as a RAID1, which will result in a fault-tolerant 1TB instead of 2. The units also offer software tools above that, such as remote access tools and data “protection”.

The units are already available in the U.S., starting at around $750 to $800, with other release dates not yet announced. You can read the full press release at WD's site.