Theoretically, you can upgrade RAM & SSD on your M1 Mac mini, but you shouldn't | AppleInsider
Mac mini Late 2014] Ram upgrade | MacRumors Forums
Saving £500 on a new Apple Mac Mini with 32GB RAM - Shogan.tech
Can the Mac mini upgrade to 32GB of RAM? | Macminicolo Blog - Tips, tutorials and reviews on running a Mac mini server
Amazon.com: A-Tech 32GB RAM for Apple iMac & Mac Mini (2018, 2019 & 2020) | DDR4 2666 MHz SODIMM PC4-21300 / PC4-21333 260-Pin SO-DIMM Memory Upgrade : Electronics
NEMIX RAM 32GB Kit (4x8GB Upgrade) DDR3-1600 SODIMM PC3-12800 for Apple MacBook Pro Mid 2012 / iMac Late 2012 / iMac 2013, Late 2014, Mid 2015, Mac Mini Late 2012 at Amazon.com
16GB to 32GB Soldered RAM Upgrade - 2018 MacBook Pro 15-inch - 4K - YouTube
How to Upgrade Aluminum Mac mini RAM (Memory): EveryMac.com
Mac mini Late 2014] Ram upgrade | MacRumors Forums
How-To: Boost your Mac's speed and prolong its useful life with easy RAM upgrades - 9to5Mac