4GB Memory Module for Apple MacBook Pro 13-inch (Mid 2012) 1600MHz DDR3 (PC3-12800) (PARTS-QUICK Brand) at Amazon.com
16GB Kit (2 x 8GB) PC3-12800 RAM for Apple MacBook Pro Mid 2012 - 13 Inch
iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 4GBx2 | MacMemory.com
So I assembled a Specced Out Unibody MacBook Pro 15-inch (mid-2012, 2.6GHz Core i7, 16GB 1600MHz DDR3 RAM) and installed some gradient colored backlight keyboard on it… : r/mac
Samsung ram memory upgrade DDR3 PC3 12800, 1600MHz, 204 PIN, SODIMM for 2012 Apple Macbook Pro's, 2012 iMac's, and 2011 / 2012 Mac mini's (8GB kit ( 2 x 4GB )) - Newegg.com
Apple MacBook Pro 13,3 Inch Mid 2012 Processor2.5 GHz Intel Core i5 for Sale in Fort Lauderdale, FL - OfferUp
A-Tech 8GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
A-Tech 4GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
USA 8GB PC3L-12800 DDR3 1600MHz Memory Module for MacBook Pro Mid-2012 15" A1286 | eBay
display - How can my mid-2012 MacBook Pro Retina 15 run a 4K panel at 30Hz over HDMI? - Ask Different
Crucial 8GB Kit (2 x 4GB) DDR3L-1600 SODIMM Memory for Mac | CT2K4G3S160BJM | Crucial.com