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SanDisk Announces World's First High Performance 4-Bits-Per-Cell (X4) Flash Memory Technology
SanDisk has developed the world’s first high performance 4-bits-per-cell (X4) flash memory which uses 43-nanometer (nm) process technology
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](http://www.sandisk.com/)SanDisk has developed the world’s first high performance 4-bits-per-cell (X4) flash memory which uses 43-nanometer (nm) process technology. This would enable the company to incorporate 64-gigabit (Gb) memory in a single die. SanDisk has also produced an advanced X4 controller, which is necessary to effectively manage the complexities and performance requirements of X4 memory.