The SK4400S with Communication Modules RoHS manufactured by Zhiyuan is an electronic part designed to provide a communications interface between a host computer and an "Internet of Things" (IOT) device. The device features an RS-485 bus interface, a low power consumption 5V power supply and independent programming interfaces. The Communication Modules RoHS certification ensures compliant and safe performance. It is ideal for applications including control systems, automation/monitoring solutions, or smart building systems.