macOS Catalina (Osafo Edition) - How to install macOS Catalina, Mojave, El Capitann and Yosemite on unsupported macs (macbook 4,1),(OsafoCatalina, OsafoMojave, OsafoElCapitann, OsafoYosemite),Emmanuel Nathan Osafo
Installing 4 recent versions of macOS on unsupported Macs – Best Mac Tips
Apple iMac 12 GB RAM Apple Desktops & All-In-One Computers for sale | eBay