My MacBook Pro mid 2012. Maxed out and running Mac OS Monterey. Best Apple laptop ever! : r/mac
OFFTEK 4GB Replacement Memory RAM Upgrade for Apple MacBook Pro 2.5GHz Intel Core i5 - (13-inch) (DDR3) (Mid-2012) (DDR3-12800) Laptop Memory at Amazon.com
Now Here's a MacBook Pro That's Easy to Repair | WIRED
16 GB RAM Upgrade on MacBook Pro 15" (mid 2012) NON Retina - YouTube
2012 Macbook Pro 15" A1286 RAM Upgrade - YouTube
Memory RAM Upgrade for Apple MacBook Pro 13-inch Mid 2012 4GB DDR3 SODIMM | eBay
NEMIX RAM 16GB Kit (2x8GB 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