I have the Mac 5,1 3.33 Ghz 6 Core Intel Xenon, running Monterey 12.7.1, I don't have a built in USB 3.0 -- I'm using that via an PCI-e Card (StarTech) which has 4 ports. No, Mojave is the OLD OS that I upgraded from and TO Monterey. I opted not to go Sonoma for now. I cloned Mojave, and ran...