Mux Shield II
Mux Shield II Mux Shield II
$24.95

This shield adds the capacity for up to 48 I/O on the Arduino and Arduino Mega. 

The Mux Shield II adds the capacity for up to 48 inputs or outputs on the Arduino and Arduino Mega. Using three Texas Instruments CD74HC4067 Analog Multiplexers, the Mux Shield makes it possible to have 48 analog/digital inputs or digital outputs in many combinations.