The exterior of the WD My Book Essential hasn’t changed significantly since the line was first introduced. Operating Temperature: 41✯ to 95✯ / 5✬ to 35✬.Dimensions (H x D x W): 6.5 x 5.3 x 1.9 in.Mac users who want to take advantage of the USB3.0 interface shipping on current generations of Apple hardware can reformat the drive to HFS+ and use the drive as a Time Machine volume. After a straightforward initial setup and backup session, the software will run in the background and create incremental backups transparently and with adjustable levels of version control. It ships formatted as NTFS and includes WD SmartWare backup software for Windows 7 and Windows 8 pre-installed.
Like its predecessors in the Essentials line, the My Book is marketed primarily as a backup storage device. The top model features a single 4TB drive and a USB3.0 interface to help speed up the process of filling it up.
Western Digital has taken a “more is better” approach with its latest iteration of the WD My Book Essential HDD.
