Features: The USB to Slave Module features integrated FC722 chip for low bus leakage current and full signals isolation, ensuring safe communication between devices and computer USB ports without risk of voltages damage. Compliant with M BUS international standards, this module offer adjustable bus voltages (12V-42V), continuous bus current (200uA 3mA), enhanced 5V/3.3V regulated output, and stable UART communication at 300 9600 bauds rates. for engineers and developers working on industrial automation, metering systems, or embedded device prototyping requiring slave connectivity. for laboratory testing, field installations, and maintenance scenarios where USB to communication bridges are needed to debug meter networks or sensorings clusters. Its selfs powered signals circuit draws energy directly from the bus, eliminating USB dependency while maintaining high stability across temperature variations and electrical interferences. Specifications: Materials: ABS Size:85x20mm Package Includes: 1PC USB to Slave Module note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.