The SanDisk X400 256 GB 2.5" SATA III Internal SSD 2311 is a high-performance solid-state drive designed for use in laptops and PCs. With a storage capacity of 256 GB, this black SSD offers fast data transfer speeds and low noise levels, making it a reliable choice for enhancing the speed and efficiency of your system. The SanDisk X400 is a top-quality internal SSD that combines durability and performance, making it an ideal choice for those looking to upgrade their storage capabilities.