Apple iMac 21.5" Mid 2011 Intel Core i5 2.7 GHz 1TB SATA Disk 4GB RAM HighSierra | eBay
Apple A1312 iMac 27" Mid 2011 2.7GHz i5 16GB RAM 1TB HDD macOS 10.13.6 Grade B | eBay
Today picked up a $20 2011 iMac 27” with working gpu too! : r/mac
32.0GB OWC Memory Upgrade Kit For 2010-2011 Apple iMac
Mid 2013 27" Apple Imac i5 — Ibargainlive.com
Timetec 32GB KIT(4x8GB) Compatible for Apple DDR3L 1600MHz PC3L-12800 CL11 for iMac (Mid 2011, Late 2012, Late 2013, Late 2014 Retina 5K, Mid 2015 Retina 5K) SODIMM Memory Module MAC RAM Upgrade at Amazon.com
Apple MC309LL/A 21.5 inch iMac Core i5 2.5 GHz 4GB RAM 500GB HDD Mid-2011 | Recycledgoods.com