16GB (8GBx2) iMac Memory for 27-inch Retina - 2019 to Current - Models 19.1 20.1 20.2 | Ramjet.com
Calculator ALL in ONE Apple iMac 19.1 Late 2019, Display 27" Retina 5K, Intel Core i5-9600K 3.70GHz, 32GB DDR4, 500GB SSD, AMD Radeon PRO 580X 8GB - TopoCom
Apple iMac 2019 ,2020 27-inch (Retina 5k) OSX , Ram & SSD Upgrades - ZD Laptop Service Centre