MacBook Air (13-inch, Mid 2012) - Technical Specifications
mac - What is the maximum RAM size for MacBook Pro Mid 2012? - Ask Different
MacBook Pro: How to remove or install memory - Apple Support
Teardown of Mid-2012 MacBook Air Reveals Tweaked SSD Connector - MacRumors
Does the mid-2012 13 MacBook Pro have an M.2 slot that I can use for an Intel Optane memory upgrade? - Quora
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com