The World’s First SanDisk 64 Gigabit X4 NAND Flash Memory Card
SanDisk ships world’s first memory cards with 64 gigabit X4 NAND flash
By Mey Lia
As we mostly knew that SanDisk is one of the most well known names in the memory card industry or manufacturing. A lot and variety of memory cards are made by SanDisk just to fit every device from mobile phones to portable game consoles markets. And today SanDisk has announced that they have shipped their world’s first 64GB Flash Memory card that using X4 NAND flash technology.
The new technology of the card will enable to store 4 bits data per cell and it’s double data per cell compare to the traditional MLC NAND that has been previously and commonly used in memory cards. The new technology that is used is a high density single-die device as it’s built on the 64GB chips and as well on the 43nm process and it will be used as well in SDHC cards and Memory Stick Pro Duo cards for Sony devices with two options of memory capacity of 8GB and 16GB. Unfortunately, the availability and the price is not yet available at this time.
As what Sanjay Mehrotra, the SanDisk President and Chief Operating Officer mentioned that the commercialization and the development of the X4 technology will represent an important milestone for the flash storage industry, so the challenge with the X4 technology was not only to give the lower costs inherent to 4-bits per cell but it is as well to meet the reliability and performance requirements of MLC NAND industry standard cards. So the deep experience of the high speed 2 and 3-bits –per-cell flash chip designs has been applied by their world-class design and engineering team to collaborate with their leading design partners to develop a powerful error correction algorithms in order to assure the reliable operation.













































