Refurbished: nVidia Quadro 4000 2GB GDDR5 PCI-E x16 2.0 Graphics Video Card With DVI and DisplayPort Outputs 38XNM Standard Height Workstation Video Card - Newegg.com
Best HP 616076-001 2GB Quadro 4000 | Refurbished
NVIDIA Quadro K4000 ultra-fast Performance 3GB Graphics Card - Great for AutoCad!
Ars Reviews the Quadro 4000 Mac Edition: NVIDIA's sole Mac offering a promising start | Ars Technica