Built without moving components, this Samsung 850 PRO SSD renders silent operation and durability. The SATA III interface of this 2.5" drive enables quick and efficient data transfer. For storing digital content and data backup, the 850 PRO model offers 256 GB space and has 524288 KB buffer size. The dimensions of this data storage unit are 0.27 inch height, 2.75 inch width, 3.94 inch depth, and its weight is 0.14 lbs.