Nantero - fast nano-tube non-volatile memory can be uses as DDR module

Nantero company presents new NRAM memory based on carbon nano-tubes which is capable of DDR performance (5ns r/w access time). These memories has retention about 15000years. See more details on https://fuse.wikichip.org/news/1656/nanteros-nram-a-universal-memory-candidate/  They were tested also in space. Currently Fujistu will produce first modules in 2019 (https://hexus.net/tech/news/ram/120050-fujitsu-will-start-mass-production-nram-next-year/).