The sealed new in box Samsung 250GB V-NAND SSD 850 EVO Solid State Drive is a high-performance external SSD designed for PCs. This black unit features a sleek design with dimensions of 3.94 inches in length, 2.7 inches in height, and 2.7 inches in width. With a transfer rate of 540 Mbps and 3D V-NAND flash technology, this SSD offers fast and efficient storage for your files and applications. The 250GB storage capacity provides ample space for storing large amounts of data, while the 512 MB cache ensures quick data access and processing. Made by Samsung, a trusted brand in technology, this SSD is a reliable choice for enhancing your computer's performance.