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 500 GB 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. 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 handled more quickly. The RED SN700 is rated for sequential read speeds of up to 3,430 MB/s and 2,600 MB/s write; random IO reaches 420K IOPS for read and 380K for writes.
At its launch, the SSD was priced at 80 USD. The warranty length is set to five years, which is an excellent warranty period. Western Digital guarantees an endurance rating of 1000 TBW, a high value.