Mac Mini 2.3

Mac 0S Catalina

original HD 500gb + Kingston SSD A400 480GB SATA III 2.5" Solid State Drive 

RAM 16GB

All working

this is for someone that wants to run MacOS Sequoia on Intel using Opencore Legacy Patcher and installing it in the Kingtone SSD and using the old HD as just backup for data.

I am using this configuaration on a similar MacMini and it works beautifully.