The SanDisk Z400s mSATA 128GB Solid State Drive (SSD) is a high-performance internal SSD designed for laptops. With a read speed of 520, this unit offers fast data access and transfer. The drive type supported is SSD, and the storage format includes both HDD and SSD components for added flexibility. Ideal for users seeking a reliable and efficient storage solution, this SanDisk SSD model is a dependable choice for enhancing the speed and responsiveness of their computing devices.