The NEW Samsung 840 Pro 2.5" 256GB SATA III Solid State Drive SSD MZ-7PD256BW is an internal SSD with a storage capacity of 256GB. It features a SATA III interface and is manufactured in China. This product comes sealed and is designed for high performance and efficient data storage in computers and laptops. The drive is compact, measuring 2.5 inches, making it suitable for various devices. Additionally, it comes with a California Prop 65 Warning regarding potential chemical exposure during use.