I could post this in Tech, but I think it's more relevant for creators who want to stream on the go. Please watch the video, Harris is a great creator and he also points out some minor bugs with the device, but in case you want a quick recap of what this is about:

AverMedia's charger comes in 2 types, both are capable of HDMI passthrough from the device you are charging.... but the more expensive model also functions as a capture card. It blew my mind. Charge your Switch, play on a hotel TV display and hook it up to your laptop for streaming? Yes please!