SSD – Is This B&M Key SSD SATA or NVME?

There are no dual-personality SSDs. Source: Current offerings.
That's a given, of course, because it would be very complex to build a controller that connects to all necessary pins on the M.2 connector. The controller would also have to support running in both a SATA and PCIe mode. And last but not least, the controller would have to detect which connection to make. AFAIK, sensing is not a part of the M.2 connector, however.

So, while technically possible (probably), it won't ever be economical.

SAS is also entirely unrelated because it is not used in consumer-grade PCs. There would be no benefit in providing SATA/PCIe connectivity for SAS devices.

It's also NVMe vs AHCI and SATA vs PCIe. The only way to find out what protocol and connection the SSD uses is to look at the specifications.

A PCIe SSD could use whatever proprietary protocol the manufacturer decides on.

I can now confirm that the problem I experienced booting my cloned Samsung 970 Evo plus NVMe SSD into Windows is now solved!

I was advised by Macrium to try booting into Windows in safe mode. They thought that loading Windows in safe mode with a minimum drivers, etc may enable Windows to boot far enough to find the new drive and load the NVMe drivers. I tried this and it worked! Once I was in Windows in safe mode I went to Device Manager and sure enough the Windows NVMe driver had been loaded and the drive was present.

I then logged out, shut down and restarted the laptop in standard mode and everything loaded as it should. I have now updated to the Samsung NVMe SSD driver and run some diagnostics and benchmarks. All is running as it should and much faster!

I would like to say a big thank you to all the forum users that took the time and effort to provide a response with help and suggestions to assist me with this problem.

Sometimes the simplest solutions are the ones that you don't think of!

Steve