Mac OS X Lion or Mountain Lion, Mavericks and Yosemite.

WD My Passport for Mac carries a street price of $199.99, $99.99, and $69.99 for 3TB, 2TB, and 1TB, respectively.

The USB 3.0 port powers the device, so no additional power supply is needed. Users can run diagnostics and format the My Passport with WD Drive Utilities, but other than that it is a plug and play drive that can be used to transfer and store up to 3TB of data. It comes with 256-bit AES encryption for added security, as well as compatibility with Apple Time Machine. The regular My Passport Ultra is compatible with Mac OS after reformatting, but users that know that they will be using a Mac might find this model to be easier. This line of drives is more or less just an adaptation of the My Passport Ultra that is optimized for Mac out of the box. This review explores the Mac models, but the other new features are detailed in the new My Passport Ultra (7th Generation) review. The most notable upgrades with this line are an increase in maximum capacity (3TB), customization options, improved backup capabilities, and a line of models designed specifically for use with Mac OS. WD has released a seventh generation of their popular My Passport line of external hard drives. This review explores the Mac models, but the other new features are detailed in the new My Passport Ultra (7th Generation) review.

Formatting my passport ultra for mac