WD 2TB My Passport For Mac...
WD 6TB My Book USB 3.0 HDD External 3.5" Desktop AC Powered
The 6TB My Book External Hard Drive for Mac from WD is designed for the storage and protection of data, including music, movies, photos, documents, and more. Up to 6TB of storage is combined with USB 3.0 connectivity at speeds of up to 5 Gb/s, giving users the required speed and capacity for their endeavors. This hard drive is backwards compatible with USB 2.0 at speeds up to 480 Mb/s and comes pre-formatted as HFS+ Journaled for Mac OS X El Capitan and Yosemite.