In summary, VersaPad® is a versatile touchpad module intended for integration by OEMs into laptops, military and rugged computers, panel PCs, and medical devices. With smoothness and sensitivity internally enhanced by true pressure measurement, it offers all customary mouse functions; mousing, tapping, dragging, and scrolling. The module's tough, moisture and grime resistant surface can be used with a finger or stylus, even in wet or dirty environments. Plus, it operates over an extended temperature range of -20ºC to +60ºC. VersaPad® is available in two options: PS/2 and USB. The touchpad sensor is a four-wire resistive type. The pad is composed of two resistive layers separated by an air gap. One plate is used for the X-axis and the other is used for the Y-axis. When pressure is applied, the two resistive plates make contact. A microcontroller measures position and pressure then uses advanced, proprietary algorithms to yield smooth mouse functionality. The USB/ PS2 VersaPad® are available in two connection methods for both data and button connections: flat flexible cable interface (FFC) and wire-to-board header connector interface.