Waveshare CH343G USB to RS232/485/TTL Interface Converter, Industrial Isolation

WaveshareSKU: RB-Wav-604
Manufacturer #: USB TO RS232/485/TTL (B)

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Sale price $27.76

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  • 1x USB Converter
  • 1x USB Cable ~1.2m


  • 86.5 x 71.6 x 27.4 mm (L x W x H)
  • USB Cable Length: ~1.2 m
  • USB: Operating Voltage: 5 V | Connector: USB-B | Protection: 200 mA self-recovery fuse, isolated output
  • Operating Environment: Temperature: -15 °C ~ 70 °C | Humidity: 5% RH ~ 95% RH
  • Operating System: Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7
  • Weight: 196 g


  • Connector: DB9 male
  • Protection: TVS diode, surge protection & ESD protection
  • Transmission mode: Point-to-point
  • Baud rate: up to 600000 bps (not full band)


  • Connector: Screw terminal
  • Pins: A+/B-/GND
  • Direction control: Hardware automatically discriminates and controls the direction of data transmission
  • Protection: 600W lightningproof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads
  • Transmission mode: Point-to-multipoint (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
  • Baud rate: up to 2 Mbps (not full band)


  • Operating Voltage: 3.3V / 5V
  • Connector: Screw terminal
  • Pins: TXD, RXD, GND, 5V
  • Protection: clamp protection diode, over-voltage/negative-voltage proof, shock resistance
  • Transmission mode: Point-to-point
  • Baud rate: up to 2 Mbps (not full band)


  • PWR: Red power indicator, light up when there is a USB connection and voltage is detected
  • TXD: Green TX indicator, light up when the USB port sends data
  • RXD: Blue RX indicator, lights up when the device ports send data back

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