This product is a dual Ethernet interface control 8-way relay module with 8 switch inputs specially designed for industrial environments. It adopts Modbus RTU / Modbus TCP protocol, supports cascade communication on network port, supports PoE power supply on network port, and is designed with ABS housing. This product is easy to operate, with fast communication speed, stable, reliable, safe and other characteristics, can be applied to a variety of high communication requirements of industrial control equipment or applications. Colour:Black Material:Aluminum alloy Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 x Relay Modules