How do you install RAM in your iMac? - Coolblue - anything for a smile
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Don't Upgrade The RAM In Your New Apple iMac, Do This Instead
Factory Original 64GB (2x32GB) Memory Upgrade for 2020 & 2019 Apple iMac 27" w/Retina 5K Display & 2018 Apple Mac Mini DDR4 2666Mhz PC4-21300 SODIMM 2Rx8 CL19 1.2v RAM Adamanta at Amazon.com
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
iMac Memory Upgrade: Improve Your iMac's Performance