I finally got around to putting an SSD into the late 2012 Mac Mini in my ham shack. Wow! - should have done it a long time ago. The good news is that by waiting I was able to get a Crucial 1 GB for just over $100. The only hangup was cloning the original HDD. I tried using Disk Utility to format (Erase), then clone (Restore), which should work, but I couldn't get the Restore function to accept the formatted SSD, even though it was correct for Catalina. So, I downloaded Carbon Copy Cloner free version and it worked perfectly.