I have a 12v via cigarette connector version. There are USB versions out there. Trick is aim the camera towards the tailgate, add spacers if you are mounting on the glass.
Not available yet for 2021 + from WeatherTech. I went with EGR SlimLine in channel dark smoke window visor instead, kinda dark and created a blind area when turning. I had WeatherTech light smoke window visor on my Highlander, it was the much better and safer.