The allies of CompactFlash got together to fight against dominance by SD .
In November 2010 , Sandisk , Sony and Nikon proposed a next generation card format which would come in a similar form factor as CF/CFast but be based on PCI Express instead of Parallel ATA.Engadget : Sandisk , Sony , and Nikon propose 500MBps memory card with more than 2TB capacity The new format is targeted at high-definition camcorders and high-resolution digital photo cameras , would offer read speed of 500 Mbyte/s and storage capabilities beyond 2 TiB , and is not backward compatible with either CompactFlash or CFast .
CompactFlash