NVIDIA Quadro K4200 4GB GDDR5 256-bit PCI Express 2.0 x16 Full Height Video Card with Rear Bracket
Amazon.com: Epic IT Service Quadro P1000 4GB GDDR5 with Four Mini Displayports, Both Half and Full Brackets, and 4 x mDP to HDMI Adapters, 4K Resolution (1 Year Warranty) : Electronics