Nvidia Quadro 4000 2GB 256-bit Dual DP DVI GDDR5 Video Card— For Mac | eBay
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 :
NVIDIA Quadro 4000 2GB GDDR5 Video Card - DISCOUNT ELECTRONICS