The Western Digital My Book 16 TB USB Hard Disk Drive is a reliable and high-quality external hard drive compatible with laptops, PCs, and Macs. With a USB 3.0 specification, this black drive offers fast read speeds of up to 5000MB/s and a transfer rate of 150 Mbps. It has a 7200 RPM rotation speed, 128 MB cache, and a storage capacity of 16 TB, making it ideal for storing large amounts of data. With a manufacturer warranty of 3 years, this portable external HDD is a great choice for expanding storage capacity on your devices.