

Looks like this:
Key to its success is Xiaomi’s LaserLink technology. This is a proprietary optical communication module, apparent as a small dot on the back of the phone and the lens where data is transferred as light (near-infrared laser) at speeds of up to 10 Gbps.
The lens has two pins that connect on the back to draw power from the phone
I very much like the UWP version and prefer it over the desktop version
It’s a shame they are killing it
This goes to show that Microsoft is completely pulling the plug on first class touch support for their products to support surface devices. Since Panos Panay left Microsoft, surface devices have been losing what makes them special.