SanDisk is shipping 8GB and 16GB SDHC cards that utilize X4 technology (Photo: Business Wire)
SanDisk Corporation has begun shipping 64Gb flash memory cards based on the company’s advanced X4 flash memory technology. Five years in the making, X4 (4-bits-per-cell) technology holds twice as many bits in each cell as conventional multi-level cell (MLC) NAND memory chips. Based on 43nm process technology, the 64Gb NAND flash chip is the highest-density single-die memory device in the world to enter production. SanDisk is shipping 8GB and 16GB SDHC cards as well as 8GB and 16GB Memory Stick PRO Duo cards with X4 technology.