Apple's M4 Mac mini lineup is becoming increasingly hard to buy， with all 256 GB variants now unavailable at the Apple Store and even higher-storage models facing six- to ten-week delays.

However， this goes to a broader supply chain strain rather than a simple product transition. The situation reflects industry-wide shortages of memory and storage components， alongside Apple's apparent decision to prioritize higher-demand MacBooks over desktop units.

tl；dr

ongoing semiconductor supply constraints are causing more and more problems.