The Corsair MP400 is a solid-state drive in the M.2 2280 form factor, launched on October 8th, 2020. It is available in capacities ranging from 1 TB to 8 TB. This page reports specifications for the 4 TB variant. With the rest of the system, the Corsair MP400 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the PS5012-E12S-32 from Phison, a DRAM cache chip is available. Corsair has installed 96-layer QLC NAND flash on the MP400, the flash chips are made by Micron. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The cache is sized at 750 GB, once it is full, writes complete at 650 MB/s. The MP400 is rated for sequential read speeds of up to 3,480 MB/s and 3,000 MB/s write; random IO reaches 610K IOPS for read and 710K for writes.
At its launch, the SSD was priced at 585 USD. The warranty length is set to five years, which is an excellent warranty period. Corsair guarantees an endurance rating of 800 TBW, a relatively low value compared to other SSDs.