Dell nVidia Quadro K420 1GB DDR3 PCI-Express x16 DVI-I DisplayPort Graphics Video Card 14PHT 014PHT CN-014PHT. NVidia Model Number: Quadro K420Dell Part Number: 14PHT 014PHT CN-014PHTCompatible Part Numbers: 699-52012-0505-400 180-12012-1005-B01