The specs state that the IGX Orin Developer Kit has two x16 PCIe slots, however, all official images show three PCIe slots (green arrows) and one slightly different connector (blue arrow). Could someone from NVIDIA please clarify?
This picture is out of date… IGX has 2xPCIe5.0 slots - both are x16 physical. 1 is x16 electrical and the other is x8 electrical. NVIDIA currently only supports a single A6000 dGPU in the IGX platform.
Current board layout attached. The board has been made smaller than the image you had shared. You would be bandwidth constrained using a second dGPU in the x8 slot - it would be sub optimal from a performance perspective.