High Quality: DSD TECH provides users with industrial-grade USB to RS485 adapters.This RS485 data cable is 1.8 meters in length, which can easily connect you to RS485/Modbus network. FTDI FT232RL Chip:Built-in original FTDI FT232RL Chip.DSD TECH take full responsibility for the authenticity of the chip. Built-in 3 PIN Terminal Board: Through this terminal board, you can adapt to different RS485 connectors. Compatibility: Works with Windows ,Linux,Mac OS Etc. Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this USB to RS485 Cable. All questions will be answered within 1 working day.