NVIDIA Quadro NVS 420 by PNY 512MB GDDR3 PCI Express Gen 2 x16 VHDCI to Quad DVI-D SL or DisplayPort Profesional Business Graphics Board, VCQ420NVS-X16-DVI-PB by PNY - Walmart.com
Nvidia Quadro K420 1GB PCIe x16 Video Card Dell 14PHT [K420] - $114.99 : Professional Multi Monitor Workstations, Graphics Card Experts
Nvidia Quadro NVS 420 512MB GDDR3 SDRAM PCI Express x16 Video Card at TR Reuse Group