… 3D NAND stacks memory cells vertically in dozens to hundreds of layers, rather than shrinking them further on a flat plane. This approach overcame the physical limits of planar NAND scaling, improving density, endurance, and even performance while keeping manufacturing costs manageable. …
… Samsung likely sees less value in dedicating engineering and production capacity to optimizing new high‑density NAND for the 600MB/s ceiling of SATA, especially when NVMe can use the same NAND at much higher speeds. …
… This is because artificial intelligence data centers are buying up HBM, DDR5, and enterprise NAND storage at an unprecedented, seemingly infinite bulk. …
… NAND flash cells could only handle a limited number of program/erase cycles, and once you started chewing through those, failure was pretty much inevitable . …
… Both of these things require NAND, which is exceedingly expensive. …