4GB PC10600 DDR3 1333MHz SO-DIMM Memory Compatible with 2011 MacBook Pro, Mid 2010/2011 21.5" & 27" iMac Models, 2011 Mac Mini (OWC1333DDR3S4GB) at Amazon.com
Timetec Hynix IC 32GB KIT(4x8GB) Compatible for Apple 27 inch Mid 2010 21.5/27 inch Mid 2011 iMac DDR3 1333MHz PC3-10600 CL9 204 Pin SODIMM Upgrade for iMac 11,3 iMac 12,1 iMac 12,
16GB Memory Upgrade Kit For Apple iMac 2010-2011
2GB DDR3 1333 SODIMM for Apple iMac (Mid 2010,2011, Late 2011), Mac Mi – Aplus Technology
Crucial 8GB Kit (2 x 4GB) DDR3L-1333 SODIMM Memory for Mac | CT2K4G3S1339M | Crucial.com
How to install memory for your iMac DDR3 1333MHz - YouTube
2011 Apple Mac Mini Imac Macbook Pro Memory Ram 8gb 4gb 16gb Ddr3 1333 - Rams - AliExpress
Timetec Hynix IC 8GB Compatible for Apple DDR3 1333MHz PC3-10600 SODIMM Memory for Early/Late 2011 13/15/17 inch MacBook Pro, Mid 2010 and Mid/Late 2011 21.5/27 inch iMac, Mid 2011 Mac Mini (8GB) - Walmart.com
OWC 16.0GB (4 x 4GB) 1333MHz 204-Pin DDR3 SO-DIMM PC3-10600 CL9 Memory Compatible with iMac (OWC1333DDR3S16S) at Amazon.com
Corsair Mac Memory — 8GB DDR3 SODIMM Memory Kit
32Gb (4X8Gb) Memory RAM Compatible with Apple Imac 27-Inch 3.4Ghz Intel Core I7 Ddr3-1333 By CMS Brand C12 - Computer Memory Solutions
A-Tech 16GB (4x4GB) RAM for Apple iMac (Mid 2010, Mid 2011, Late 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com