WD Blue 3D NAND SATA SSD Internal Storage, 1TB : The WD Blue 3D NAND SATA SSD utilizes 3D NAND technology for capacities up to 2TB 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.3 Combined with the free, downloadable WD SSD Dashboard software and a 3-year limited warranty, you can confidently upgrade your system to the WD Blue 3D NAND SATA SSD. MASTER PACK