SanDisk on Tuesday announced that it has begun shipping flash memory cards based on the company's X4 flash memory technology. Chips built using the new technology hold four bits of data in each memory cell, or twice as many as the cells in conventional multi-level cell (MCL) NAND chips, the company said.

"The development and commercialization of X4 technology represents an important milestone for the flash storage industry," said Sanjay Mehrotra, president and chief operating officer, SanDisk. "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."

SanDisk called the shipment of X4 memory a "necessary evolution" for the industry, noting that the technology will result in a cost advantage for consumers.

Image Credit: Sandisk