iFixit Compatible with Memory Maxxer RAM Upgrade Kit MacBook Pro 13" Unibody Mid 2012 at Amazon.com
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
iFixit clarifies Mac Studio upgrade potential as it also tears down Studio Display - NotebookCheck.net News