They're mostly just physical adapters. If your OS supports NVMe, it'll just work.
Booting from them is an entirely different story.
Yeah, that why I was surprised to see "All OS" and "OS Transparent" listed
and I think I saw "driverless" also.
W7 knows nothing at all about NVMe. Don't see how it can work.
And the Asus Sabertooth X79 motherboard.
Will learn the hard way.
Thanks to all!