Two setups for a Lumia 950.
1. At desk, Microsoft Continuum Dock with 25 inch monitor and USB Microsoft Comfort keyboard/mouse combo.
2. In my bag, a Microsoft wireless receiver (with dongles for HDMI to VGA), Microsoft Sculpt Keyboard, and Microsoft Designer Mouse.
Often I am using Continuum in classes to give lectures, since it is more reliable than the antiquated and barely supported classroom computers. In addition it is often easier to simply reach up and plug the MS wireless receiver into the open HDMI port on the projector than try to figure out where the cables in the room are screwed up.