Starting from the 2014 model, Apple integrated the RAM into the main logic board, making it impossible for users to upgrade the RAM themselves. This includes the 2014, 2018, and all M-series Mac Minis ...

In a surprise move, the M4 Mac mini includes a removable, swappable SSD. Apple really should give customers the option to buy high-capacity versions of these as storage upgrades for the tiny desktop.

The M4 Mac mini came with a surprise — a slotted and upgradeable SSD. Here's how to install one, get it running, what to expect for speed, and what's happened in the last eight months since upgrading.