This addON expansion card for IoT systems provides 8 digital inputs and 2 open collector outputs, offering versatile functionality for various industrial and IoT applications. The digital inputs can handle open collector outputs or dry contact connections, allowing for flexible integration with a range of sensors and switches. Designed as an addON module, this card seamlessly extends the capabilities of IoT cards, providing scalable options for monitoring and control in complex environments. Its adaptable input and output configurations make it an ideal choice for developers and engineers seeking customizable and efficient digital I/O solutions. Additionally, it is fitted with a screwless connector that enables quick and secure wire connections, simplifying installation and maintenance.