Limitations: Only ‚internal‘ disks are supported, but some external disks can be made to work with additional software. Some disks do not support S.M.A.R.T. at all and therefore do not work with SMARTReporter's S.M.A.R.T.-check: • the SSD built into the 2015 12″ MacBook • the „OWC Aura SSD for Mac Pro“ SSD Support: SMARTReporter supports S.S.D. and Flash Storage devices well (see the F.A.Q.) but e