It looks like we're getting our first look at AMD's upcoming Radeon RX 6800 XT graphics card and its PCB for a custom variant.

We can see this is a prototype board with its GDDR6 modules missing, and the VRMs covered with a ridiculously huge heat sink -- this is far from retail, far from a consumer-focused graphics card. We should expect this to be a custom Radeon RX 6800 XT graphics card (powered by the Navi 21 XT GPU) or the lower-end Navi 21 XL-powered card.
We can see that it requires dual 8-pin PCIe power connectors, with more details arriving in less than a week when AMD reveals its new Radeon RX 6000 series in detail on October 28.