4090 USB-C™ Breakout Board Adafruit 4090 USB-C™ Breakout Board features a symmetric/reversible connector with more data pins and higher current output capability. This USB connector provides all the basics for a resistor configuration that mimics classic USB 2.0 for a downstream connection. The two 5.1K resistors on the CC1 pins of this 4090 USB-C Breakout Board indicate to the upstream port to provide 5V and up to 1.5A.