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
NVIDIA Quadro 4000 Mac Edition Specs | TechPowerUp GPU Database
NVIDIA Quadro 4000 2GB for Mac - Studio Solutions - Design with Power
High quality Quadro 4000 Q4000 2G DDR5 cards with DVI DP connector CUDA OpenCL for mac pro 2008 2012 sent by DHL/EMS|Computer Cables & Connectors| - AliExpress