The wd blue 3d nand sata ssd utilizes 3d nand technology for capacities up to 4tb with enhanced reliability. Featuring an active power draw up to 25% lower than previous generations of wd blue ssds, you’re able to work longer before recharging your laptop, while sequential read speeds up to 560mb/s and sequential write speeds up to 530mb/s give the speed you want for your most demanding computing applications. Combined with the free, downloadable wd ssd dashboard software and a 5-year limited warranty, you can confidently upgrade your system to the wd blue 3d nand sata ssd. |As used for storage capacity, one terabyte (tb) = one trillion bytes. Total accessible capacity varies depending on operating environment. | Active power draws are up to 25% lower during sequential reads than previous generations of wd blue ssd at the 500gb capacity point. | As used for transfer rate or interface, megabyte per second (mb/s) = one million bytes per second and gigabit per second (gb/s) = one billion bits per second.