So, as it turns out, surprise, those slots in the Studio are not SSD slots, and the boot volume is not an SSD. They are slots for raw NAND storage, the cards ar

So, as it turns out, surprise, those slots in the Studio are not SSD slots, and the boot volume is not an SSD. They are slots for raw NAND storage, the cards are simply NAND memory chips. The SSD controller is integrated in the SoC. So an SSD will not work in those slots, period, not ever.