32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
Apple iMac 21.5 inch 3.4Ghz Core i5 32GB RAM | Reverb UK
Apple iMac 21.5 Inch 4K 3.2 GHz 6-core i7 1TB SSD 32GB RAM 4GB GFX 201 – Quality Macs
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com