The WD My Passport for Mac 4TB Portable External HDD is a sleek black hard drive from Western Digital specifically designed for use with Mac computers. With a storage capacity of 4TB and a USB 3.0 interface, it offers fast data transfer speeds and ample storage space for all your files. The portable design allows you to easily transport your data, making it ideal for on-the-go use. Compatible with USB ports, this external HDD is a reliable and convenient solution for expanding your Mac's storage capabilities.