Product description:
1: USB direct power without external power supply, stable performance, docking transmission distance with various 485 interfaces up to 1200 meters, small shell and easy to carry
2: LED display communication data
3: Machine tool PLC data reading and writing
4: Monitor data reading and writing and PTZ control
5: Centralized control of household appliances
6: Access control system, All-in-one card,
7: All kinds of industrial automation, Instrumentation
8: Parking lot, Bus tolls
9: Canteen rice vending system, Employee Time Attendance Machine:
10: Expressway toll booths, ATMs,
11: Using CH340 chip, support system: Windows XP, Vista,
Windows 7/8
12: The output ends A(D+), B(D-) and the device are connected.
13: TVS protection.

Package included:
2 pcs USB to RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS with TVS protection