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.
“The development and commercialization of X4 technology represents an important milestone for the flash storage industry,” said Sanjay Mehrotra, SanDisk’s president and chief operating officer. “Our challenge with X4 technology was to not only deliver the lower costs inherent to 4-bits-per-cell, but to do so while meeting the reliability and performance requirements of industry standard cards that employ MLC NAND.”
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“The shipment of 4-bits-per-cell technology is a necessary evolution for the industry,” said Joseph Unsworth, Gartner research director. “Enabling this technology in mainstream products demonstrates a cost advantage in the flash memory industry that considers 2-bits-per-cell in a memory device as standard. The NAND industry continues to see a rapid pace of innovation, and adoption of this technology will be essential to remain competitive.”
No announcement yet on pricing or retail availability, but we shouldn't have to wait long.