The WD 4TB My Passport Ultra Portable HDD is a sleek and durable external drive designed specifically for Mac users. With a silver color and compact 2.5-inch form factor, this hard drive offers fast read speeds of up to 480MB/s. It features password protection, Time Machine compatibility, and is powered by USB, making it convenient for use on the go. The 4TB storage capacity provides ample space for storing large files and backups, while the rugged design ensures durability even in challenging environments. Perfect for those needing extra storage capacity for their Mac devices.