The black 1TB Express USB 3.0 Portable External Drive from OWC / Other World Computing puts your music, photos, and personal data right where you need them. This pocket-sized, portable hard offers a capacity of 1TB, data transfer speeds of up to 155 MB/s, a SATA III 6 Gb/s interface, 5400 rpm, and a 128MB cache. It is also powered using the USB bus, meaning that now additional power cables or AC adapters are required for use. Compatible with Windows and Mac, the Express connects to your system using its micro-USB 3.0 port and the included USB 3.0 cable. Protection is provided by a limited 2-year warranty.