The Seagate Backup Plus 4TB USB 3.0 desktop drive is a sleek black external hard drive designed for use with PCs. With a USB 3.0 interface, this drive offers fast read speeds of up to 500MB/s and a transfer rate of 300 Mbps. It provides 4TB of storage capacity, making it ideal for backing up large amounts of data. The drive is compatible with HDD drive types and supports Blu-ray BD-R writable format. This Seagate Backup Plus model is part of the Expansion product line, ensuring reliability and performance for all your storage needs.