1. Kioxia is currently sampling 2Tb QLC NAND flash, utilizing both vertical and lateral scaling. 2. The company has employed CBA (CMOS directly Bonded to Array) technology. 3. By stacking 16 2Tbit dies, Kioxia can achieve a 4TB device in a compact package measuring 11.5 x 13.5mm with a height of 1.5mm.