DaFuRui USB to RS485 Converter Adapter?3Pack CH340T chip 32/64-bit Suitable for Laptops Windows 7 8 XP Vista

Specifications: Work temperature range: -40°C ~ +85°C  Communication distance :1200m(max) Features 1: Antistatic, anit-jamming, stable performance. Features 2:No external power supply or data cable needed Application 1?Highway toll station?ATM machine. 2?LED display data communication;  3?Machine PLC data read? write? and PTZ control;  4?Centralized control of household electrical appliances; 5?Access control systems?Variety of industrial automation; 6?Instrumentation?Employee attendance machine;  Baud Rate Range: 75 ~ 115200 bsp; maximum speed up to 500 kbps. Package Includes: 3pcs  USB to RS485 Converter Adapter