When I originally got my RZBOX I used Higher speed NVME SSD 2900 Read / 2100 Write. Every time I attempted to install Windows or Linux the install would freeze or the SSD would vanish from /dev on linux.
Eventually I tried SATA M.2 Drives and those worked but were slow.
Finally I had bought one of the slower NVME SSDs that had a 2400 Read and 1600Write and decided to try those. To my surprise those worked.
There is something with the RZBOX that causes it to freeze when using higher speed NVME drives.
Note all NVME drives were PCIe 3.0 and were from different manufacturers.
CHUWI,
I would respectfully recommend that you put together a list of NVME SSDs that are known to work with the RZBOX at the minimum. It will save customers from trying an SSD that will not work in the RZBOX. If it is possible to release a BIOS update to remedy the issue it would make the RZBOX an even better product.