Please bear with me, I don't know Linux well.
I have Knoppix 8.1 on usb. Firefox tells me it is critically out of date.
I ran apt-get...
Apple 256GB PCIe Flash Storage SSD MZ-JPV256S - Mac Pro For Sale
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Apple 256GB PCIe Flash Storage SSD MZ-JPV256S - Mac Pro : $185
This upgrade kit provides 256GB internal storage for your 2013 Mac Pro. Unlike those available from most other sellers (MZ-JPV2560 or MZ-JPU256T), the item for sale includes the exactly same Apple part (MZ-JPV256S; P/N: 655-1858K) that is factorily installed in Mac Pros manufactured since late 2015 -- nearly twice as fast as the previous generation. An upgrade with this genuine Mac Pro part will eliminate any potential problems, such as overheating, rebooting, or bootcamp/trim failure, caused by unofficial, used, or third party.