The 3M™ Multi-touch Controller PX521C is designed to operate with 3M™ Multi-touch Sensor PCT1650 in size ranges from 17"- 26.5". Whether you’re designing for multi-touch, multiusers, gestures or all of the above, the 3M Multi-touch Controller PX5000 has the speed and responsiveness you’ve come to expect. The advanced controller design has a built-in palm-rejection feature, which helps ignore unintended screen touches that can occur through natural user interaction. At the core of the controller is the PX5000 ASIC, design by 3M using our 30+ years of capacitive sensing experience it is a stable platform that OEMs and integrators can count on today and for years into the future.