Memory Upgrades for 2019-2020 iMac 27-Inch - Up to 128GB
Timetec Hynix IC 32GB KIT(2x16GB) Compatible for Apple 2019 iMac 27-inch w/Retina 5K Display, Late 2018 Mac Mini DDR4 2666MHz PC4-21300 2Rx8 CL19 1.2V SODIMM Memory RAM Upgrade (32GB KIT(2x16GB)) - Newegg.com
Apple iMac 27 Inch with Retina 5K display Intel 10th Gen Core i5 8GB RAM 256GB SSD Radeon Pro 5300 with 4GB of GDDR6 memory Graphics Two Thunderbolt 3 (USB‑C)/Four USB-A ports
Memory Upgrades for 2019-2020 iMac 27-Inch - Up to 128GB
Timetec 32GB KIT(4x8GB) Compatible for Apple Late 2015 iMac (27-inch w/Retina 5K Display) DDR3L 1867MHz / 1866MHz PC3L-14900 2Rx8 CL13 1.35V 204 Pin SODIMM Memory Module MAC RAM Upgrade for iMac 17,1
Amazon.in: Buy OWC 32GB (2 x 16GB) 2400MHZ DDR4 SO-DIMM PC4-19200 Memory Upgrade for 2017 iMac 27 inch with Retina 5K Display, (OWC2400DDR4S32P) Online at Low Prices in India | OWC Reviews
Install memory in an iMac - Apple Support
Apple 27" iMac® with Retina 5k display (Latest Model) Intel Core i5 (3.1GHz) 8GB Memory 1TB Fusion Drive Silver MRR02LL/A - Best Buy