Scheda Video nVIDIA Quadro K2100M 2GB MXM in metallo per iMac 11,1 / 11,2 / 11,3 / 12,1 / 12,2 A1311 A1312 fine 2009/metà 2010 / 2011 _ - AliExpress Mobile
Big Sur upgrades in K2100M upgraded Imac 2011 | MacRumors Forums
Апгрейд GPU Nvidia Quadra k2100m 2GB iMac 27 Mid 2011 A1312 работает без прошивки - 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
APPLE IMAC 27" 2011 3.5GHz Quad Core i7 10 GB RAM NVIDIA Quadro K2100M EUR 700,50 - PicClick IT