ITEM NAME:2Pcs 16CH Analog Digital MUX Breakout Board CD74HC4067 Precise Module arduino JR.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! 2x CD74HC4067 16 CH Analog Digital MUX Breakout Board Precise Compatible Arduino.