OWC 16.0GB (4 x 4GB) 1333MHz 204-Pin DDR3 SO-DIMM PC3-10600 CL9 Memory Compatible with iMac (OWC1333DDR3S16S) at Amazon.com
Memory Upgrades for Apple iMac 2011 Up to 32GB
1x OWC Thermal Sensor for iMac | Upgradeable New Zealand
OWC-OWC1600DDR3S08S|PC3L-12800 |Flexx Memory|Free UK Delivery
OWC Internal SSD DIY Kit for All Apple 27-inch iMac 2011 Models (tools – RamCity.com.au
Memory - Apple Mac - iMac - Page 1 - Flexx memory
Amazon.co.jp: Other World Computing OWC Memory Upgrade Kit Pc3 – 10600 MHZ SO-DIMM for iMac Mid 2010 Mid 2011 Macbook Pro 2011 Mac Mini 2011 Other : Computers