Digging through my junk box I found two Samsung PM981 M.2 NVMe SSD. One is 256GB and the other 512GB.

Testing then, both work. Neither has a lot of hours on them but the 512GB has some games on it at present

It seems I forgot that I had both sizes as I yanked OEM SSD for bigger capacity models long ago.

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Orico DS500C3-US-BK 5-disk 3.5" SATA, iTGZ 4x M.2 2280 Thunderbolt enclosure NVMe/SATA, etc. etc.