Features: 1.300 to 921600bps Communication Rate: USB to RS485 adapter can convert USB signal into balanced differential RS485 signal with stable transmission rate and reliable speed of 300 to 921600bps, transmission distance is about 3937.0ft for RS485 and 16.4ft for USB. 2.3 LED Indicators: 3 LED indicators on board, easy to check the power and signal transceiver status, support USB to RS485 communication, TVS (transient voltage suppressor) on board, can effectively suppress the surge voltage and transient spike voltage in the circuit, anti static. 3.Anti Overcurrent and Overvoltage: On board self recovery fuses and protection diodes ensure stable current and voltage output, anti overcurrent and overvoltage, and improve shock resistance. 4.Application: Converter adopts FT232RL and SP485EEN chips to provide better stability and compatibility, built in thunder protection pipe, self recovery fuse, ESD and TVS protection circuit, etc. It is suitable for various industrial control equipment or applications with high communication requirements. 5.Multi System Compatibility: RS485 converter supports for OS X, for Linux, for Android, for WinCE, for Windows 10 8.1 8 7 XP and other systems. specification:Item Type: USB to RS485 Converter Adapter Material: ABS Model: USB TO RS485 Chip: FT232RL Chip Communication Rate: 300bps to 921600bps Host Interface Form: USB A Type Interface Operating Voltage: 5V Interface Protection: 200mA Self Recovery Fuse, ESD Static Protection Transmission Distance: Approx. 5meters / 16.4ft RS485 Interface Form: Terminal Block Interface Pins: A+, B-, GND Direction Control: Hardware Automatically Discriminates and Controls the Direction of Data Transmission Interface Protection: 600W Thunder, Surge and 15KV Electrostatic Protection (120R Balanced Resistor on Board) Transmission Distance: Approx. 1200meter / 3937.0ft (At Low Rates) Transmission Mode: Point to Multiple (Up to 32 Nodes, Repeaters Recommended for More Than 16 Nodes) Indicator Lights: PWR: Power Indicator, Connected to USB, Red Light when Voltage is Detected TXD: Transmit Indicator, Red Light when Data is Sent from USB Port RXD: Receive Indicator, Red Light when There is Data Sent Back from the Device Interface Operating System: For OS X, for Linux, for Android, for WinCE, for Windows 10 8.1 8 7 XP PackageList: 1 x Converter 1 x Data Cable 1 x Screwdriver