The NXP® TWR-PROTO Prototyping Module provides an easy way for you to add custom circuitry to your Tower® System designs. * The module is a 9 x 8 cm board with card-edge connectors that allows it to be plugged directly into the Tower System * The perfboard area provides access to all of the signals as well as a generous 8.3 x 3.8 cm prototyping area. * Designed to be combined and used with other MCU and peripheral modules in the Tower System