1、2W Isolated Power Supply: This module uses conscientious materials(GDT, 2W isolated power supply), and ABS flame retardant shell 2、Safe And Environmentally Friendly Craftsmanship: Combining the circuit scheme with ample space designed carefully, with the appearance style of unique scientific and technological aesthetics, and the production concept of safe and environmentally friendly craftsmanship 3、3 Proof Paint: 3 proof paint is heat resistant, moisture proof, and chemical resistant, providing an excellent converter choice for the majority of industrial, commercial users 4、Strong Anti Interference Ability: The module is designed for complex working conditions and has strong anti interference ability. use with repeater can realize long distance transmission and communication 5、5 In 1 Multi Function: 5 in 1 multi function, possess 3 optocoupler and 3 channel isolation solution, two kinds of USB control chips optional