Industrial USB TO 8-Channel TTL Converter

WaveshareSKU: WAV-27076
Sale price £25.40
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This USB to 8-channel converter is a versatile USB to UART adapter designed to extend USB connectivity to 8 independent TTL channels. Each channel operates with hardware flow control, providing simultaneous and reliable communication.

This converter has multi-protection circuits, including self-recovery fuses and protection diodes, providing stable current and voltage outputs. It protects against over-current and over-voltage conditions, improving shockproof performance. Additionally, the built-in TVS (Transient Voltage Suppressor) effectively mitigates surge voltage and transient spikes, offering comprehensive lightning and ESD protection.

It also has a voltage translator circuit with surge suppression and ESD protection, providing safe and stable communication. It supports multiple systems including Mac, Linux, Android, Windows 11, 10, 8.1, 8 and 7, making it an ideal choice for industrial projects requiring reliable and secure data transmission.


  • Extending USB to 8CH TTL (UART) with hardware flow control, allows concurrent and independent communication for each channel
  • Self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, improve shockproof performance
  • TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightning proof & ESD protection
  • Voltage translator circuit, with surge suppress and ESD protection, safe and stable communication
  • TTL serial port 3.3V and 5V voltage level switch, allows selecting TTL level
  • Aluminium alloy case with oxidation dull-polish surface, CNC process opening, solid and durable
  • 4 LEDs for indicating the power and transceiver status

What's on Board


Host Port USB
Device Port TTL (UART)
Baudrate 1200bps ~ 2M
USB Operating voltage 5V
Connector USB-B
Protection 200mA self-recovery fuse, ESD protection
Power Supply Connector 5V DC power jack
Protection Over-voltage protection and anti-reverse protection
TTL (UART) Connector 50-pin anti-reverse header
Protection TVS diode, surge protection & ESD protection
TTL level 3.3V/5V (configurable)
Indicators PWR The power indicator lights up red when there is a USB connection and voltage is detected
ACT The status indicator lights up green when the driver is detected
TXD TX indicator lights up when the USB port sends data
RXD RX indicator lights up when the device ports send data back
Operating Environment Temperature -40℃ - 85℃
Humidity 5%RH - 95%RH
Operating System Mac, Linux, Android, Windows 11 / 10 / 8.1 / 8 / 7



VCC 5V or 3.3V output, configured by switch
GND Ground
TXD Connecting to MCU.RXD
RXD Connecting to MCU.TXD
RTS Connecting to MCU.CTS
CTS Connecting to MCU.RTS

Package Contents

  • 1x USB TO 8CH TTL
  • 1x USB cable (1.2m)
  • 1x 50-pin squid wire

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