“After using a generic usb power supply I got tired of the Pi constantly re-booting due to lack of adequate power (amps) - since buying this I have no problems. Its great value, can be used as a usb charger for other devices and looks good with the Pi 3 case.”
“As described made for pie boxes in particular the pie 3 which has a rainbow box displayed on screen if the power supply isn't sufficient. This clears that issue.”