Whether you're working, creating, casually gaming, or processing large amounts of data, the 1TB Blue SN550 NVMe M.2 Internal SSD from WD puts the power of NVMe at the heart of your system so you can get more done, faster. This SSD has a capacity of up to 1TB and features and M.2 2280 form factor, a PCIe 3.0 x4 interface, 3D NAND flash memory, sequential read speeds of up to 2400 MB/s, sequential write speeds of up to 1950 MB/s, an MTTF (Mean Time to Failure) rating of 1.7 million hours, and an endurance of 600TB TBW (Total Bytes Written). Thanks to WD's SSD Dashboard, the health of your SSD will be monitored consistently.