Crucial MX500 250GB 3D NAND SATA 2.5 Inch Internal SSD, up to 560MB/s - CT250MX500SSD1 Sequential reads/writes up to 560/510 MB/s and random reads/writes up to 95K/90K on all file types Accelerated by Micron 3D NAND technology Integrated Power Loss Immunity preserves all your saved work if the power unexpectedly gets cut Aes 256-bit hardware-based encryption keeps data safe and secure from hackers and thieves