My issues were all with trying to boot from it. It worked for a while, then I tried to boot in to my Bootcamp drive (a separate 3.5" drive) and after that it would no longer boot from the velocity Solo X1. The issue was 100% reproducible. Once I got it working again, I could not boot from my Bootcamp drive again or it would stop working.
I tried so many things to get it working again that I don't remember what eventually worked. Eventually, I just decided to pull the card and revert back to the built-in SATA ports. I never tried using the card but not booting from it as that would defeat the purpose I purchased the card for. At the time, my only SSD in my Mac Pro was the boot drive.
It's possible that the support person you were in contact with my not be aware of the issues involving 3,1s.
The good news is that if you manage to get it to boot again, it should continue to work indefinitely. Just make sure you DO NOT boot in to Bootcamp.
I tried so many things to get it working again that I don't remember what eventually worked. Eventually, I just decided to pull the card and revert back to the built-in SATA ports. I never tried using the card but not booting from it as that would defeat the purpose I purchased the card for. At the time, my only SSD in my Mac Pro was the boot drive.
It's possible that the support person you were in contact with my not be aware of the issues involving 3,1s.
The good news is that if you manage to get it to boot again, it should continue to work indefinitely. Just make sure you DO NOT boot in to Bootcamp.