The Seagate STHP4000400 Backup Plus USB 3.0 Portable External Hard Drive is a sleek black 2.5" external hard drive with a storage capacity of 4TB. This drive is perfect for backing up and transferring large amounts of data and files, offering fast speeds with its USB 3.0 interface. Made by Seagate, a trusted brand in data storage, this drive is a reliable and convenient solution for expanding storage capacity on the go.