The ThinkStation 256GB 2.5” SSD option provides a light, thin, fast and reliable performance utilizing MLC NAND flash based technology along with SATA 6.0Gb/s interface, this drive enables improved boot time and data transfers when compare to HDDs. The SSD speeds make day to day tasks speedier when leveraging the SSD capacity for cache and boot up while enabling you to maximize your hard drive capacity for storage.