SK Hynix managed to beat Samsung and Toshiba once again in being the first one to unveil a flash memory product. This time, it is the world's first 96-layer 512 Gb 4D NAND flash chip. Mass production will start before the end of the year and the first products to use the new chips should show up in the first quarter of 2019.
https://www.notebookcheck.net/SK-Hynix-unveils-world-s-first-96-layer-512-Gb-4D-NAND-flash-chip.357316.0.html