The Western Digital RED SN700 is a solid-state drive in the M.2 2280 form factor, launched on September 28th, 2021. It is available in capacities ranging from 250 GB to 4 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Western Digital RED SN700 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the 20-82-00700-A2 Triton MP28 from WD, a DRAM cache chip is available. Western Digital has installed 96-layer TLC NAND flash on the RED SN700, 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 RED SN700 is rated for sequential read speeds of up to 3,430 MB/s and 3,000 MB/s write; random IOPS reach up to 515K for reads and 560K for writes.
At its launch, the SSD was priced at 145 USD. The warranty length is set to five years, which is an excellent warranty period. Western Digital guarantees an endurance rating of 2000 TBW, a high value.