waveshare Industrial Isolated USB to RS232/485 Converter, Original FT4232HL Chip, Supports USB to 2-Ch RS232 + 2-Ch RS232/485, Wall-Mount & Rail-Mount Support

Adopts original FT4232HL chip, fast communicating, stable and reliable, better compatibility. Supports USB to 2-ch isolated RS232/485 + 2-ch isolated RS232 ^^ Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption ^^ Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection ^^ Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance ^^ Onboard 120R terminal resistor on the RS485 interface, enabled/disabled via jumper.

9 LEDs for indicating the power and transceiver status ^^ Industrial grade metal case, supports wall-mount and rail-mount installation, solid and beautiful, easy to install