Crucial MX500 2.5" 4000 GB Serial ATA III 3D NAND

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 Dynamic write acceleration delivers faster saves and file transfers Crucial 5-year limited warranty