3 bit-per-cell NAND is sampled out the manufacturers. The 3 bit per cell is exactly that, 3 bits of information are stored in each NAND cell. This increased the capacity while keeping the foot print the same size. This ultimately leads to larger storage capacity at a cheaper price. Traditionally, SLC [Single Layer Cell] and MLC [Multi Layer Cell] technology is used is USB and SD flash, but we will begin to see TLC [Triple Layer Cell or 3 bit per cell] technology have a full roll-out by the end of this year.
Over the past 18 months the biggest problem with TLC is the stability of the memory and performance, but Intel and Micron feel they overcame those problems and ready for production. More with their press release:
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