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
How much RAM do you need, should you upgrade it, and will it speed up your PC? | Extremetech
16GB Memory Upgrade for MacBook Pro, iMac, and Mac mini