The Solidigm P41 Plus is a solid-state drive in the M.2 2280 form factor, launched on August 2nd, 2022. It is available in capacities ranging from 512 GB to 2 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Solidigm P41 Plus interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the SM2269XT from Silicon Motion, a DRAM cache is not available. Solidigm has installed 144-layer QLC NAND flash on the P41 Plus, the flash chips are made by Intel. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The cache is sized at 150 GB, once it is full, writes complete at 224 MB/s. Copying data out of the SLC cache (folding) completes at 172 MB/s. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The P41 Plus is rated for sequential read speeds of up to 4,125 MB/s and 3,325 MB/s write; random IO reaches 390K IOPS for read and 540K for writes.
At its launch, the SSD was priced at 90 USD. The warranty length is set to five years, which is an excellent warranty period. Solidigm guarantees an endurance rating of 400 TBW, a relatively low value compared to other SSDs.