Acting as a hybrid between NAND and DRAM, Toshiba XL-FLASH may eventually make its way to SSDs and even NVDIMM to be a cost-efficient storage solution for future high-performance servers and workstations.
https://www.notebookcheck.net/Toshiba-XL-FLASH-storage-promises-DRAM-like-speeds-at-cheaper-prices.428681.0.html