Secondly, there are whispers about the GeForce GTX 1060 coming in two versions. One with 3GB GDDR5 memory and another model with 6GB GDDR5 memory. At least one of these cards reportedly has no SLI support.
Next the site also found photos of the GeForce GTX 1060 Founders Edition, it's unknown if this is the 3GB or 6GB version but there is no SLI finger so this seems to confirm the lack of multi-GPU support.
The GTX 1060 Founders Edition has a cooler similar to its bigger brothers, but some parts were replaced by plastic to make it cheaper. The card is significantly shorter than the cooler, the PCB is labeled as PG410 and the photos reveal the use of a single 6-pin PCIe power connector. If you look at the photos, you can also see that the PCIe power connector is located at the rear of the card as NVIDIA integrated it into the cooler. You can also see it has five display outputs: DVI-D, 3x DisplayPort and one HDMI.