Overview This is an industrial USB to RS485 converter with original FT232RL And SP485EEN inside. It features embedded protection circuits such as llgthningproof, resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size. The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.Specifications Product type: industrial converter Baudrate: 300-921600bps Host port: USB Device port: RS485 USB: Operating voltage: 5V Connector: USB-A Protection: 200mA self-recovery fuse, ESD protection Transmission distance: about 5m RS485: Connector: screw terminal Pins: A+, B-, GND Direction control: hardware automatic control Protection: 600W llgthningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) Transmission distance: about 1200m (low rate) Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) LED indicators: PWR: red power indicator, light up when there is USB connection and voltage is detected TXD: red TX indicator, light up when the USB port sends data RXD: red RX indicator, light up when the device ports send data back Operating environment: Temperature: -15℃ ~ 70℃ Humidity: 5%RH ~ 95%RH Operating system: Mac, Linux, Android, WinCE, Windows 10 / 8.1 / 8 / 7 / XP