OWC 8GB (2 x 4GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac,
Apple MacBook Air "Core i5" 1.8 13" (Mid-2012) A1466 MD231LL/A – Coretek Computers
A-Tech 8GB Kit (2x4GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz SODIMM PC3-12800 204-Pin SO-DIMM Memory Upgrade
OWC 4GB PC12800 DDR3L 1600MHz SO-DIMM Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S4GB) at Amazon.com
Apple MacBook Pro 13.3" (500GB HDD, Intel Core i5 3rd Gen., 2.5GHz, 4GB RAM) Laptop - Silver - MD101LL/A (Mid 2012) for sale online | eBay
Apple MacBook Pro 13" Mid 2012 Core i5 2.5GHz 4GB RAM 120GB SSD | eBay
Restored Apple MacBook Pro Laptop, 13.3", Intel Core i5-3210M, 4GB RAM, 500GB HD, Mac OS X 10.8 Mountain Lion, Silver, MD101LL/A (Refurbished) - Walmart.com
4GB Memory Module for Apple MacBook Pro 13-inch (Mid 2012) 1600MHz DDR3 (PC3-12800) (PARTS-QUICK Brand) at Amazon.com