All four ports output video successfully.
Dell Nvidia Quadro P1000 4GB GDDR5 High Profile Graphics Card G7T21
NVIDIA Quadro P1000 Professional 4GB, gddr5, Graphics Board (VCQP1000-PB)
NVIDIA Quadro P1000 4GB GDDR5 4 Mini DP Low Profile Graphics Card
Nvidia Quadro P1000 4GB GDDR5 Graphics Card
NVIDIA QUADRO P1000 GRAPHICS CARD 4GB GDDR5-SHORT BRACKET
NVIDIA Quadro P1000 4GB GDDR5 Low Profile 4x mini DP GPU Video Card
