USB to TTL Serial Converter CH343G Module – USB/Type-C

Gaqqee CH343G USB to TTL Serial Converter Module

Upgrade your development workflow with this industrial-grade USB to TTL Serial Converter featuring the high-performance CH343G controller chip. Supporting transfer speeds up to 6Mbps and communication rates from 50bps to 6Mbps, this compact module is built for developers, engineers, and electronics enthusiasts who demand stable, fast, and reliable serial communication.

Key Features

• CH343G Chip: Delivers faster transmission speeds with enhanced serial port rates and superior data transfer stability compared to older generation chips.
• Dual Interface: Choose between USB Type-A or USB Type-C host interface (optional) for maximum flexibility across modern and legacy devices.
• Built-In Protection: On-board self-resetting fuse and transient suppression diode provide overcurrent, overvoltage, reverse current, and ESD (electrostatic discharge) protection — keeping your computer and devices safe.
• I/O Protection Diodes: Dedicated I/O protection safeguards connected devices against electrical surges.
• Switchable TTL Voltage Levels: On-board 3.3V and 5V level conversion circuitry enables flexible TTL communication with a wide range of microcontrollers and devices.
• Three LED Indicators: PWR (power), TXD (transmit), and RXD (receive) LEDs allow real-time monitoring of connection and data flow status at a glance.
• Low Power Architecture: Energy-efficient design reduces consumption while enhancing device stability and longevity.
• Broad OS Compatibility: Works seamlessly with Windows, Linux, and Mac OS. No driver installation required for Windows 10 and above.
• Fault Detection: Precise error detection and correction capabilities enable hardware/software-level diagnostics, helping prevent data loss from device failures.
• Premium Build: Sleek black plastic housing with a DC power jack featuring reverse polarity protection and smooth insertion/removal.

Technical Specifications

What's in the Box

• 1× CH343G USB to TTL Serial Converter Module
• 1× 8-pin DuPont cable

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Frequently Asked Questions

Q: Does the CH343G USB to TTL converter require driver installation?

A: No driver installation is required for Windows 10 and above. The module also supports Linux and Mac OS, making it a plug-and-play solution for most modern operating systems.

Q: What voltage levels does this USB to TTL serial converter support?

A: The module supports both 3.3V and 5V TTL communication levels via on-board switchable level conversion circuitry, making it compatible with a wide range of microcontrollers, development boards, and serial devices.

Q: Is the CH343G module protected against electrical damage?

A: Yes. The module features an on-board self-resetting fuse, transient suppression diode (ESD protection), I/O protection diodes, and reverse polarity protection on the DC power jack — providing comprehensive protection for both the converter and connected computer or devices.

Q: What is the maximum transfer speed of this USB to TTL serial converter?

A: The CH343G chip supports a maximum transfer speed of 6Mbps, with a communication rate range of 50bps to 6Mbps, suitable for high-speed serial debugging and data download applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.