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CH343 Micro-USB To UART Converter Module, High Baud Rate Transmission


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Manufacturer Part Number:
₹318.60 inc. GST
₹270.00 ex. GST
₹318.60 inc. GST
₹270.00 ex. GST


The Waveshare's USB-Micro To UART converter module integrates the new version CH343G chip. The board supports a higher data rate (up to 6Mbps) and more serial port IO levels (5V / 3.3V / 2.5V / 1.8V) in comparison with CH340G. CH343 is a USB bus adapter chip, that realizes USB to a high-speed asynchronous serial port, and supports up to 115200bps communication Automatic identification and dynamic self-adaptation of baud rate, providing common MODEM contact signals for expanding asynchronous serial ports of computers, or feature USB bus for the common serial device or MCU.

  • Adopts new version CH343G chip. Compared with CH340G, it supports higher data rate (up to 6Mbps) and more serial port IO levels (5V / 3.3V / 2.5V / 1.8V)
  • Supports Mac, Linux, Android, Windows 7/8/8.1/10/11
  • Onboard resettable Fuse and Transient Voltage Suppressor, anti-overcurrent and anti-overvoltage, anti-surge, anti-static, improve shock resistance, stable and safe communication performance
  • Onboard IO protection circuits, anti-surge, anti-static, stable and safe communication performance
  • Onboard 3.3V and 5V TTL level switch pins for selecting TTL communication level
  • Support 3.3V/5V output (the module is powered by USB, and the onboard jumper should be shorted to 3.3V or 5V accordingly)
  • Adopts double-sided black immersion gold process, which is durable and has a good look
Package Content
  1. OPTIONS CH343 USB UART Board x1
  2. 6-pin squid wire x1

USB To UART Communication Module

Stable Transmission | Multi-Device Applicable | Multi-System Compatible

Multiple Protection Circuit, Safe And Stable

Onboard Resettable Fuse And Transient Voltage Suppressor, Prevent Overcurrent And Overvoltage, Improve Shock Resistance; Onboard IO Protection Circuit, Anti Surge, Anti-Static, Stable And Safe Communication Performance

Multiple Systems Support

Compatible With Popular Systems Like Win7/8/8.1/10/11, Mac, Linux, Android.

Interface Introduction

Indicator Description
PWR Power indicator, turn on when the voltage is detected from USB interface
RXD Receiving indicator, turn on when data is sent back from the device interface
TXD Sending indicator, turn on when data is sent from USB

Pinouts Definition

VCC 5V or 3.3V output for external device (configured by jumper)
GND Ground
TXD Connects to MCU.RXD
RXD Connects to MCU.TXD
RTS# Connects to MCU.CTS
CTS# Connects to MCU.RTS

Outline Dimensions


Technical Specifications

Host Interface:
Device Interface:
Communication Range:
50bps ~ 6Mbps
USB Device Interface:
USB-Micro; protection: resettable Fuse, ESD protection
UART Interface:
connector: 6pin right-angle pinheader; protection: IO protection diode

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.