DFRobot USB to RS485 Module

DFRobotSKU: RB-Dfr-942
Manufacturer #: FIT0737

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  • DFRobot USB to RS485 Module
  • Uses a PL2303 chip
  • Module Baud Rate: 300 bps - 115.2 kbps
  • Drives up to 32 RS485 devices
  • Equipped with lightning protection
  • Power Consumption: <0.5 W

The DFRobot USB to RS485 Module uses a PL2303 chip and an easy-to-install driver. There are LED indicators on the module to show its working status: red for power, yellow for data sending, green for data receiving, which is convenient for system debugging.

The baud rate of the module is 300 bps - 115.2 kbps and the RS485 transmission distance can be as far as 2 km at the speed of 57.6 kbps.

The module can drive up to 32 RS485 devices, and the RS485 line is equipped with lightning protection, which effectively ensures the load capacity and working stability of the module.

  • 1 x DFRobot USB to RS485 Module


  • 85 x 23 x 14 mm / 3.35 x 0.91 x 0.55 inch
  • Electrical Standard: USB2.0, RS485 interface standard compliant
  • Transmission Rate: 300 bps-115.2 Kbps
  • Working Mode: Asynchronous Half Duplex (RS485) Self-adaption
  • Load Capacity: drive 32 RS485 devices
  • Transmission Distance: up to 2 km at the speed of 57.6 Kbps (faster speed will shorten the distance)
  • Power Consumption: <0.5 W

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