USB to RS485 Converter Adapter Module — CH340 / FT232RL Compatible, for Arduino & Industrial SCADA

USB to RS485 Converter Adapter Module — CH340 / FT232RL

This USB to RS485 adapter provides a simple and reliable interface between a PC or microcontroller USB port and RS485 serial bus networks. Compatible with CH340, PL2303, and FT232RL USB bridge chips, it supports half-duplex RS485 communication at speeds up to 1Mbps, making it ideal for Modbus RTU, industrial SCADA systems, PLC communication, and Arduino RS485 projects.

Key Specifications

Parameter	Value
USB Chip Options	CH340G / PL2303 / FT232RL
Interface Standard	RS485 (EIA-485)
Communication Mode	Half-duplex
Baud Rate	300 bps – 1 Mbps
Bus Load	Up to 32 nodes
Signal Terminals	A (+), B (-), GND
USB Connector	USB Type-A
OS Support	Windows 7/8/10/11, Linux, macOS
LED Indicators	TX / RX activity

Why Choose This RS485 Adapter?

• ✅ Multi-chip compatibility — CH340, PL2303, FT232RL options for driver flexibility
• ✅ Up to 32 nodes on one bus — ideal for multi-device RS485 networks
• ✅ Plug-and-play on Windows 10/11 — CH340 driver auto-installs on modern OS
• ✅ TX/RX LEDs — visual data flow confirmation
• ✅ Screw terminal RS485 output — secure wire connection for industrial environments

Typical Applications

• Modbus RTU master/slave communication
• SCADA and PLC serial bus interfacing
• Arduino RS485 multi-node networks
• Industrial sensor and actuator control
• Building automation (BACnet MS/TP)
• Energy meter and inverter data logging

Package Contents

• 1 × USB to RS485 Converter Adapter Module
• 1 × USB Cable

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