Comment on ICYMI, Unraid now supports internal boot and TPM licensing
CorrectAlias@piefed.blahaj.zone 2 weeks ago This is actually what I did for the mSATA! I used an Eluteng USB adapter.
For my main server, though, I have a 36 + 2 2.5in bays, so I was fine using one of those bays for this.