Features: The R4DB908 module offer 2 in 1 RS485 and RS232 Interfaces with 8 channel 3A MOS tube outputs, making it for complex automation tasks requiring communication and controls. Featurings photoelectric isolation and compatibility with RTU commands, this module ensures integration and performances in various industrial applications. for engineers and technicians of industrial automation and home systems, this module provide flexible solution for expanding capabilities and controlling multiple devices. for home automation, motor driving, Relays control, and security monitoring systems, the R4DB908 enhances efficiency and reliability in operational. with lightweight, this module is easy to integrate into existing setups, providing a powerful tool for enhancing systems functionality and ensuring smooth operations across different platforms. Specifications: Materials: ABS Size:96x72mm/3.78x2.83inch Package Includes: 1PC RS485 RS232 Module note: Due to the screen setting difference, the item color may slightly differents from the pictures. Please allow slight dimension difference due to differents manual measurement.