The Samsung 850 PRO 256GB 2.5" SATA III Internal SSD is a high-performance solid-state drive designed for use in laptops and PCs. With a sleek black design and a form factor of 2.5 inches, this SSD offers fast read and write speeds of up to 550MB/s and 520MB/s respectively. It features TRIM support for optimized performance and a manufacturer warranty of 10 years, making it a reliable choice for long-term storage needs. Additionally, with a storage capacity of 256GB and a cache size of 512MB, this SSD provides ample space for storing data and programs efficiently.wipped and tested