Install without opening the PC chassis or powering down the computer: the converter can be attached to a PC while it is running, avoiding chassis modifications or downtime. USB to RS485/422 conversion: lets PC users connect RS485 or RS422 devices through a USB interface, enabling standard USB hosts to communicate with serial networks. Adds one speed RS485 or RS422 port: instantly provides an additional port for serial devices, expanding your PC's connectivity. Fully isolated power and signal: the converter features complete isolation of power and signal paths, delivering stronger antiinterference performance and more reliable operation in challenging environments. Plugandplay USB interface: designed for straightforward use with a USBenabled PC, facilitating quick setup and operation. Compatibility and practicality: compatible with standard PC USB ports and RS485/422 devices, enabling easy integration into existing systems and workflows. 23 practical use scenarios Industrial data acquisition and monitoring: connect RS485/RS422 sensors, meters, or controllers to a PC for data logging, monitoring, and analysis without modifying the computer's hardware. Development and testing bench: add an extra RS485/RS422 port to a workstation or test bench to develop, test, and debug serial devices and interfaces. Building automation and control: integrate RS485/RS422 devices such as HVAC controllers, lighting systems, or energy meters with a PC for centralized control or data collection.