DFROBOT RainbowLink V2: 4-Channel Isolated USB to Serial Converter (RS485/RS232/2xTTL) | Built-in 12V Boost Power | Rugged Industrial Housing | Portable Debugging Tool for Field Engineers & PLC

Introduction RainbowLink-V2 is an upgraded version of RainbowLink. The RS232 and RS485 interfaces adopt a fully isolated design, and a fully enclosed PC plastic housing is added. It is a USB protocol converter with 4 independent channels. It can convert USB to one independent RS485 (fully isolated) channel, one independent RS232 (fully isolated) channel, and two TTL channels. In addition, it can provide 12V, 5V, and 3.3V power supply externally at the same time. Shipping List RainbowLink V2 4 Channel USB to Serial Converter

• SOLVES THE "NO POWER" PROBLEM IN FIELD WORK: Unlike standard converters, the RainbowLink V2 features an integrated high-power step-up module. It converts USB 5V into 12V (up to 800mA) output directly, allowing field engineers to power and test industrial sensors, water pumps, or actuators without carrying bulky external power adapters.
• ALL-IN-ONE DEBUGGING HUB: Acts as a complete debugging hub with 4 independent channels (1x RS485, 1x RS232, 2x TTL/UART) that can function simultaneously. Ideal for complex development environments where you need to communicate with a PLC, an HMI screen, and two microcontroller boards at the same time.
• PROTECTS YOUR LAPTOP FROM ELECTRICAL DAMAGE: Designed for harsh environments, the RS485 and RS232 ports feature full electrical isolation (both signal and power). This critical safety feature prevents ground loops and voltage surges from damaging your laptop or mainboard during field maintenance.
• SMART PORT IDENTIFICATION & EASY WIRING: Say goodbye to guessing "COM3 or COM4". The custom driver automatically renames ports in Device Manager (e.g., "RainbowLink RS485", "RainbowLink TTL") for instant recognition. Equipped with spring-loaded screwless terminals, making field wiring quick and tool-free.
• Compatible with Windows, Linux, and macOS: Ready for immediate use without complex installation steps. This converter integrates seamlessly with Raspberry Pi, LattePanda, and Jetson Nano, making it a perfect expansion module for edge computing and robotics. The USB Type-C interface ensures high-speed, reliable data transmission across all major operating systems.