Amazon.com: Apple 21.5 inches iMac (Early 2019) with Retina 4K Core i3 3.0GHz 1TB Fusion 8GB (Renewed) : Electronics
NEMIX RAM 32GB (4x8GB Upgrade) DDR3-1333 PC3-10600 204-Pin SODIMM Memory for Apple MacBook Pro Early/Late 2011, iMac Mid 2010 27 inch 4-Core, iMac Mid 2011 21.5/27” , Mac Mini Mid 2011 at Amazon.com
CMS 16GB (4X4GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core I3 3.06 21.5-Inch (Mid-2010) - A28 at Amazon.com
Amazon.com: LCD Front Glass for iMac 21.5" A1311 2009 2010 2011 : Electronics
Amazon.com: OWC OWCDIYIM27SSD10 Solid State Drive Kit for Apple iMac 2 : Electronics
A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com
OWC 24GB (2 x 4GB + 2 x 8GB) PC10600 DDR3 1333MHz SO-DIMMs Memory Compatible with 2011 MacBook Pro, Mid 2010/2011 21.5" & 27" iMac Models, 2011 Mac Mini (OWC1333DDR3S24S) at Amazon.com
Amazon.com: ICTION New Replacement LCD Display Cable Compatible for iMac 21.5" A1311 Mid 2010 593-1280 593-1280-A 593-1280 A 593-1280A Series(JUST fit for 2010 Year iMac 21.5",NOT for 2011 Year) : Electronics
Amazon.com: ShineBear Power Supply 205W for iMac 21.5" A1311 Late 2009 Mid 2010 Mid/Late 2011 614-0444 OT8043 - (Cable Length: 0.2m) : Electronics
Amazon.com: Apple iMac 21.5 inches Retina 4K i5-8500 8 256GB SSD Radeon Pro 560X Silver MHK33LL (Renewed) : Electronics
Amazon.com: Front Glass Bezel Replacement Screens Cover for iMac 21.5 Inch A1311 iMac Accessories Year 2009 2010 2011 922-9117 922-9343 MB950LL/A MC508LL/A MC509LL/A : Electronics