Skip to product information
1 of 1

Blue PCB Electronics

2A25 CH340 USB to RS485 485 Converter Adapter Module

2A25 CH340 USB to RS485 485 Converter Adapter Module

Regular price Dhs. 15.00
Regular price Dhs. 45.00 Sale price Dhs. 15.00
Sale Sold out
View full details


USB to RS485 Converter Adapter
USB connector: to your PC
RS485 connector: to your RS485 device
No need external power, powered by USB port
Fully compliant USB 2.0 standard , backward compatible with USB1.1
NOTICE: Per the notice from factory, the new batch uses chip PL2303HX from Taiwan which with more compatibility than CH340 Chip, if you have any question or problem, please feel free to contact us, thanks for your support


  • Dimension:6.0 x1.8x1.4cm
  • Color: Black
  • Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
  • Supports baud rate range : 75bps - 115200bps , up to 6Mbps
  • Supports Plug , Play and hot-swap ( USB side) ;
  • Better than using CH341D chip or similar chip to support the laptop USB port .
  • Communication distance up to 1.2KM, with anti-jamming performance of industrial site 
  • Work temperature range: -40°C ~ +85°C
  • Communication distance :1200m(max)


  • All kinds with RS485 port device parameter settings , data communication
  • Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines can be .
  • A and A port of the device when the wiring is connected , B and device B connected . Some devices D + A and D, - B .
  • LED display of communication data
  • Machine PLC data reading and writing
  • Monitoring data read and write , and PTZ control
  • Centralized control of household electrical appliances
  • Access Control System ; card
  • A variety of industrial automation ; instrumentation
  • Parking ; bus fees
  • Dining Hall ; staff attendance
  • Highway toll station; ATM machine

Package Included:

  • 1 x  PL2303HX Chip USB to RS485 485 Converter Adapter