nVIDIA Quadro K2100M 2GB MXM Metal Video Card for iMac 11,1 / 11,2 / 11,3 / 12,1 / 12,2 A1311 A1312 Late 2009 / Mid 2010 / 2011 - AliExpress
nVIDIA Quadro K2100M 2GB MXM Metal Video Card for iMac 11,1 / 11,2 / 11,3 / 12,1 / 12,2 A1311 A1312 Late 2009 / Mid 2010 / 2011 - AliExpress
2011 iMac GPU Upgrade Now with Brightness and Boot menu - Absolutely Worth It! - YouTube
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
For Apple iMac 21.5" A1311 Mid/Late 2009 2010 2011 NVIDIA K2100M 2GB Video Card | eBay