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
Amazon.com: NVIDIA Quadro 4000 for Mac by PNY 2GB GDDR5 PCI Express Gen 2 x16 DVI-I DL, DisplayPort and Stereo OpenGL, DirectX (Boot Camp), CUDA and OpenCL Profesional Graphics Board, VCQ4000MAC-PB :
QUADRO 4000-DELL - New Other - DELL NVIDIA QUADRO 4000 FERMI GPU 2GB 256 CUDA CORES MEMORY INTERFACE 256 BIT GDDR5 MEMORY BANDWIDTH 89.6GB/S PCI-E 2.0 X16 ( 1 ) ONE DUAL
ThinkStation Nvidia Quadro P620 2GB GDDR5 Graphics Card with HP Bracket - Walmart.com