Although this has boosted the storage capacity, the transition from single-level cell (SLC) to multi-level (MLC) and today’s TLC and QLC NAND Flash have come at severe penalties, mostly in the ...
QLC, or quad-level cell, refers to NAND that has four bits per cell, as opposed to SLC, MLC, and TLC, which have one, two, and three bits per cell respectively. The upside of adding more bits to a ...