ITEM NAME:16CH Analog Digital MUX Breakout Board CD74HC4067 Precise module ArduinoSEAU.This is a breakout board for the very handy 16-Channel Analog/Digital Multiplexer/Demultiplexer CD74HC4067. This allows you to connect up to 16 sensors to your system using only 5 pins! 1pc CD74HC4067 Precise module.