A new type of ceramic-based storage technology by a German startup: https://www.cerabyte.com/
It stores infinitely more data than regular hard discs, lasts longer too. Might not everyone's cup of tea, but I'm very interested.
I design substations for a living, and the major client I'm assigned to is a data storage Corp. This is.... fascinating. Right now the big thing my client is switching to is "data cubes" to replace the miles-long structures needed to store data on regular servers. Very curious about how this will enable companies like my client to save massive amounts of space for their data centers