Memory Cards / CFast Cards
CFast are a more recent variant of the popular CompactFlash card, although the two cards are not cross compatible. They have faster read and write speeds , making them more suited for high burst photography or high resolution/framerate video.
‘Fast Speed’ cards are those that are suitable for faster styles of photography that require prolonged burst shooting, such as event, wedding, sports and wildlife. They are also suitable for high framerate 4K and high resolution 8K video.