The Kioxia Exceria Plus was a solid-state drive in the M.2 2280 form factor, launched on June 25th, 2020, that is no longer in production. It was available in capacities ranging from 500 GB to 2 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Kioxia Exceria Plus 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. Kioxia has installed 96-layer TLC NAND flash on the Exceria Plus, 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 cache is sized at 40 GB, once it is full, writes complete at 1000 MB/s. The Exceria Plus is rated for sequential read speeds of up to 3,400 MB/s and 3,200 MB/s write; random IO reaches 680K IOPS for read and 620K for writes.
At its launch, the SSD was priced at 270 USD. The warranty length is set to five years, which is an excellent warranty period. Kioxia guarantees an endurance rating of 800 TBW, a relatively low value compared to other SSDs.