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
Original For Nvidia Leadtek Quadro Q4000 Professional Graphics Card Cooler - Fans & Cooling - AliExpress
PNY NVIDIA Quadro NVS 450 by PNY 512MB GDDR3 PCI Express Gen 2 x16 Quad DisplayPort or DVI-D SL Graphics Card