Which RAM can you use in the 2018 Mac Mini?Best answer: The 2018 Mac Mini supports SODIMM DDR4 RAM and can support up to 64GB of it, although it's unlikely you'll need that much RAM.
The best RAM upgrade: Crucial 32GB RAM kit ($213 at Amazon)
An affordable improvement: Crucial 16GB RAM kit ($105 at Amazon)
User replaceable SODIMM DDR4
It's been some time since Apple allowed Mac Mini owners to upgrade their own RAM, but the 2018 model brought the feature back to the table.
The Mac Mini uses standard SODIMM DDR4 modules, more commonly found in laptops. The Mac Mini can accept two modules, which combined can be up to 64GB. It's unlikely most will ever need that much, though, and kits are almost impossible to find, too.
A lot cheaper than buying from Apple
When it wasn't user replaceable, if you wanted more RAM you were stuck paying what Apple wanted to charge you for it. And that's never been close to as cheap as you could make the same upgrade for yourself. It still isn't.
When buying a new Mac Mini, increasing the RAM ...
Source:
Which RAM can you use in the 2018 Mac Mini?
