The My Book Studio Edition II makes a decent direct-attached storage solution for those who need to extend a computer's storage space or want a large backup drive. The drive's rather buggy firmware might turn many users away, however.
Western Digital's My Book 3.0 is a great external-storage addition for desktop computer users. However, notebook users have better choices.
The Western Digital My Book World Edition is a fast, plug and play simple-to-use NAS server that unfortunately lacks many features and has subpar remote access performance.
The Western Digital My Book Mirror Edition is a compelling choice for an external drive, delivering excellent value, good performance, and two hard drives for added data security. For anyone looking for an external USB 2.0 drive, the My Book Mirror belongs on your shortlist.
If write speed isn't a top priority, the Western Digital MyBook is a good deal at around $300 for a 500GB drive. It'll look good on your desk or bookshelf, too.
The Western Digital MyBook Essential Edition external hard drive is a slightly pared-down version of the MyBook Premium Edition. It's a good option if you need additional storage without backup software.