Features: Engineered with industrial grade FT232RNL/CH343G chips, this USB to RS485 converter deliver conversion, ideal for industrial automation systems requiring long distance communication. Featuring plug and play functionality and ABS housing with protective, this RS485 communication module operates without external power Designed for IT professional, automation engineers, and field technicians who demand communication tool. Perfect for factory floor machine networking, building automation control panels, outdoor security monitoring installations, data exchange. Ensuring easy operational in temperature variable workshops while maintaining integrity for financial transaction terminals and laboratory instruments. Specifications: Component:ABS Type:FT232RNL/CH343G Size:Approx.7.5cm/2.95inch Host: USB Device: RS485 Communication rate: FT232RNL chip: 300bps ~921600bps CH343G chip: 300bps~ 3Mbps Transmission distance: about 5 meters Temperature: -15℃-70℃ Package Includes: 1Pc USB to RS485 Converter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.