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#31
Here is the solution. I have a few of them. Excellent quality and performance. The NVMe mounts directly on the board.
x4 PCI Express to M.2 PCIe SSD Adapter | HDD Adapters | StarTech.com
Verify with Startech's Technical Support, first.
Hope this helps!
One more thing...
They offer another model that can accommodate two NVMe's. Don't do it. The bus bandwidth is split between them.
FWIW.