The Kioxia XG6 is a solid-state drive in the M.2 2280 form factor, launched on May 29th, 2019. It is available in capacities ranging from 512 GB to 1 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Kioxia XG6 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the TC58NCP090GSD (Phison PS5007-E7-11) from Toshiba-Phison, a DRAM cache chip is available. Kioxia has installed 96-layer TLC NAND flash on the XG6, 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 10 GB, once it is full, writes complete at 1500 MB/s. The XG6 is rated for sequential read speeds of up to 3,180 MB/s and 2,960 MB/s write; random IO reaches 355K IOPS for read and 365K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Kioxia guarantees an endurance rating of 600 TBW, a typical value for consumer SSDs.