UT890A Converter
Key Features & Specifications

• Compatibility: Works with USB 2.0, 1.1, and 1.0 standards, plus EIA RS-485 and RS-422 protocols. 
• Power: Powered directly via the USB line; no external power supply needed. 
• Transmission Distance: Up to 1,200 meters for RS-485/422 at 9,600 bps; up to 5 meters for the USB end. 
• Capacity: Supports point-to-point and point-to-multipoint communication (allows connecting up to 32 RS-422 or RS-485 devices). 
• Protection: Features built-in ±15KV ESD electrostatic discharge protection and zero-delay automatic data flow control. 
• Cable Length: Standard 1.5 meters (approx. 5 feet). 

If you'd like, tell me:

• What specific operating system (Windows, Linux, macOS) you are using?
• What type of industrial device or PLC you want to connect?

I can provide driver installation advice or wiring guidance