Features: Adopts FT4232HL chip, fast communicating, stable and reliable, better compatibility. Supports USB to 4ch isolated RS232, convenient for expanding multiple RS232 industrial serial devices.Onboard unibody power supply isolation, provides stable isolated voltage. Onboard unibody digital isolation, allows signal isolation, high reliability, strong antiinterference, low power consumption.Onboard (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection. Onboard selfrecovery fuse and protection diodes, the current/voltage stable outputs, provide overcurrent/overvoltage proof, improve shock proof performance.Onboard power supply screw terminal, allows 5V~36V DC wide range input.9 LEDs for indicating the power and transceiver status, Aluminum alloy enclosure with sand blasting and anodic oxidation, solid and .Specifications:HOST PORT: USBDEVICE PORT: RS232BAUD RATE: 300bps ~ 921600bps: forMacOS,Linux,Android, 11/10/8.1/8/7USB interface:Operating voltage: 5VConnector: USBBProtection: 200mA selfrecovery fuse, isolated outputTransmission distance: about 5mPOWER SUPPLY INTERFACE:Power supply: 5~36V DC screw terminalProtection: AntireverseISOLATED RS232:Protection: diode, surge protection & ESD protection, power isolation and signal isolationTransmission mode: PointtopointTransmission distance: about 15mINDICATORS:PWR: Red power indicator, lights up when there is USB connection and voltage is detectedTXD1~4: Green TX indicator, blinking when the RS232 port is sending dataRXD1~4: Blue RX indicator, blinking when the RS232 port is receiving dataTemperature range: 40 ~ 85Humidity range: 5%RH~95%RHPort: Female PortMaterial: Aluminum alloycolour: blackPackage Contents:1 x converter1 adapter1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.