Does anyone know how efficient the official pi 4 power supply is? I know usb power bricks can vary greatly in power efficiency, and I'm really looking for something in the 90%+ efficient range for my pi 4s, and 95% efficiency would be fantastic. Ex: say my pi is pulling around 10 watts - at 90% efficiency the power brick should be pulling 11w from the wall.
Additionally, does anyone have a recommendation for a high efficiency, multi port adapter (ex, 6x ports). I'm currently using one of these, but, at best, its 85% efficient per Anker support
https://www.amazon.com/Anker-Charger-Po ... B00P936188