There aren’t many companies out there making UHS-II microSD cards, as there are virtually no cameras out there that can fully support them yet (still). One of the companies that does make them, though, is ProGrade Digital. They launched their initial V60 UHS-II microSD cards back in September 2018 with read and write speeds of up to 200MB/sec and 80MB/sec respectively.
Now, ProGrade has launched new V60 UHS-II microSD cards with increased read and write speeds of 250MB/sec and 130MB/sec respectively. As well as speeding up the cards, a new higher capacity 256GB version will be available. Oh, and they’ve cut the prices virtually in half.