I’m expecting RAID-0, fast and efficient, but no redundancy.

They provided a link to the iMac Pro teardown, where they describe the following: “Unlike a standard SSD, which has the controller logic onboard, these raw flash modules only have an interface buffer—the PCIe/NVMe controller lies elsewhere.” I believe the controller is part of the Apple T2 chip.

If the SSDs fail you cannot repair it, replace it, or do anything other than return it. That’s two points in my book, but I still bought one.