Apple iMac A1419 27" (Late 2012) Core i5 3470S 2.9GHz 8GB RAM 1TB HDD Catalina for sale in Co. Dublin for €375 on DoneDeal
Apple iMac 21.5 Inc. Quad Core i5-5575R 8GB 1TB Iris Pro 6200 WiFi Bluetooth Camera macOS Catalina (Late 2015) (Renewed) : Amazon.co.uk: Computers & Accessories
Big Sur on iMac 27", Mid 2011, flashed 4GB NVIDIA Quadro K4100M by Nikey22, having issues with screen brightness, any ideas? Brightness control was working with Catalina Patcher, after installing Big Sur