NAND flash memory

NAND flash memory is a type of memory chip used for long-term data storage, the kind found in solid-state drives, USB drives, and smartphones. Unlike DRAM, NAND retains data even when the power is turned off, which is what makes it suitable for permanent storage rather than temporary working memory.

NAND and DRAM are often produced by the same handful of large memory manufacturers, but they serve different purposes and their pricing cycles do not always move in lockstep, so it is worth distinguishing which one a company's results are referring to.