The Crucial M500 240GB SSD 2.5 inch SATA CT240M500SSD1 is an internal SSD that offers fast transfer rates of up to 500 MB/s and 16 MB of cache memory. With a storage capacity of 240GB, this is compatible with laptops, PCs, and Macs, making it ideal for upgrading your system for improved performance. It features NAND flash SSD storage technology and SATA III interface, providing a reliable and efficient storage solution for your data needs.