Western Digital today announced that it has successfully developed four bit-per-cell (also known as X4) 3D NAND built using 64-layer, BiCS3 technology. The company says that these chips can store 768 gigabits on a single chip (equivalent to 96GB), which is a 50% increase from 512 gigabit three bit-per-cell NAND (as basic math verifies).

WD’s

Source: Hot Hardware – Western Digital Announces ‘X4’ Four Bits-Per-Cell 64-Layer 3D NAND For SSDs