Question max win10 partition size?

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I'm sure this answer has been discussed but my searches did not find it. I have the latest win10 version with a PC Link drive cabinet (accepts 6 drives) attached to my computer. It has drives that form a virtual 10t partition through a win10 utility. I want to go to at least a 10t single drive and +20t (using multiple drives over time). What is the upper limit on win10 drive partitions? Thanks