A-Tech 8GB (2x4GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
4GB Memory Upgrade for MacBook Pro, iMac, and Mac mini
Amazon.com: OWC 32GB (4 x 8GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac Models : Everything Else
Apple Macbook Pro: 13" Inch, 14" Inch, and 16" Inch | B&H
Corsair PC3-10600 8GB SO-DIMM 1333 MHz PC3-10666 DDR3 SDRAM Memory (CMSA16GX3M2A1333C9) for sale online | eBay
8GB 2X 4GB DDR3 for Apple MacBook Pro 15" inch MC373LL/A 2.66GHz Intel Core i7 PC3-8500 204 pin 1067MHz SODIMM Memory RAM (PARTS-QUICK BRAND) at Amazon .com
Amazon.com: Apple MacBook Pro MLL42LL/A 13.3-inch Laptop, 2.0GHz dual-core Intel Core i5, 8GB Ram, 256GB SSD, Retina Display, Space Gray (Discontinued by Manufacturer) (Renewed) : Electronics
Amazon.com: Apple 13-Inch MacBook Pro w/ 2.5GHz Dual Core i5, 4GB of RAM and 500GB of Storage : Electronics
4GB Memory Module for Apple MacBook Pro 13-inch (Mid 2012) 1600MHz DDR3 (PC3-12800) (PARTS-QUICK Brand) at Amazon.com
A-Tech for Apple 16GB Kit (2x 8GB) DDR3 1600MHz PC3-12800 204-pin SODIMM MacBook Pro (Mid 2012 13”/15”), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015, 21.5”/27”, Retina 5K) Memory RAM Upgrade at Amazon.com