This LCD Display connects to the Power Commander V (PCV) via a quick disconnect cable. While connected, the unit will display all the available data from the PCV such as throttle position, RPM, percent of fuel change and injector duty cycle. The LCD Display utilizes a touch screen making setup and navigation easy. It accepts a 1 GB SD Memory Card (1 GB is the maximum useable size) to allow logging of data being displayed for later analysis.