Tarjeta de video MXM metálica nVIDIA Quadro K3100m 4 GB para iMac 27 pulgadas A1312 Sequoia
All original iMac 11.1 / 11.3 have 35W (MXM-A, 2 pipe half-height heatsink) and 50W (MXM-B, 2 pipe heatsink) which can't support K3100M 75W (MXM-B, 3 pipe heatsink). The complete combo option "Card+Heatsink+X" is the only option.