The Western Digital SN750 is a solid-state drive in the M.2 2280 form factor, launched on January 18th, 2019. It is available in capacities ranging from 250 GB to 4 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Western Digital SN750 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the 20-82-007011 Triton MP28 from WD, a DRAM cache chip is available. Western Digital has installed 64-layer TLC NAND flash on the SN750, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. The cache is sized at 36 GB, once it is full, writes complete at 1400 MB/s. The SN750 is rated for sequential read speeds of up to 3,400 MB/s and 2,900 MB/s write; random IOPS reach up to 480K for reads and 550K for writes.
At its launch, the SSD was priced at 500 USD. The warranty length is set to five years, which is an excellent warranty period. Western Digital guarantees an endurance rating of 1200 TBW, a typical value for consumer SSDs.