Timetec Hynix IC 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 for Early/Late 2011 13/15/17 inch MacBook Pro, Mid 2010 Mid/Late 2011 21.5/27 inch iMac, Mid 2011 Mac Mini(16GB KIT(2x8GB)) - Walmart.com -
Corsair 16 GB DIMM 1333 MHz PC3-10600 DDR3 SDRAM Memory (CMX16GX3M2A1333C9) for sale online | eBay
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
Corsair Mac Memory 16GB (2X 8GB) DDR4 2666MHz C18Memory Kit at Amazon.com