Features: Adopt original FT232RL Chip, fast communicating, stable and reliable, better compatibility Onboard unibody power supply isolation, provides stable isolated voltage, need no other power supply for the isolated terminals Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption Onboard self-recovery and protect diodes, ensures the current or voltage stable outputs, provides over-current or over-voltage proof, improves shock resistant Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fast and stably, without interfering each Specifications: Material:ABS USB Port: Operating voltage: 5V Connector: USB-B Protect: 200mA self-recovery, isolated output RS232: Connector: DB9 male Protect: TVS diode FT232RL Transmission Speed:300bps-921600bps Transmission mode: point-to-point RS485: Connector: screw terminals Direction control: hardware automatic control Protect: 600W lightning-proof and surge-suppress, 15KV (reserved 120R balancing resistor solder pads) Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) FT232RL Transmission Speed:300bps-2Mbps Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x USB to RS232 or 485 or TTL Isolated Converter