Adafruit ADG729 Dual 1-to-4 Analog Matrix Switch AV It has to do with

It has to do with whether that charger supports USB Quick Charge

Note: For use only with true 802

This board offers a significant upgrade over the original Metro 328

Available in multiple colors

Adafruit ADG729 Dual 1-to-4 Analog Matrix Switch AV It has to do withAnalog switches provide a solid state alternative to mechanical relays, featuring lower power consumption and no mechanical wear. The Adafruit ADG729 Dual 1 to 4 Analog Matrix Switch breakout board lets you easily connect two sets of four analog signals using an I2C interface, similar to eight mechanical switches. This breakout features the ADG729 chip which allows bidirectional switching of analog signals up to 5V. It supports multiple independent