Product Description
The USB to 4-Channel TTL Serial Converter is a compact and efficient communication expansion board that converts a single USB Type-C interface into four independent TTL UART serial ports.
It is designed for developers, testers, and engineers who need to communicate with multiple microcontrollers or serial devices simultaneously using one USB connection.
The board supports high-speed serial communication up to 6 Mbps and works seamlessly with commonly used baud rates. Each UART channel is broken out via XH2.54 connectors, clearly labeled (Serial Port A–D), making wiring simple and reliable.
Built-in TX/RX status LEDs provide real-time visual feedback for data transmission and reception. With VCP (Virtual COM Port) driver support, the board is plug-and-play compatible with Windows, Linux, and macOS, making it suitable for both development and production environments.
Key Features
USB Type-C to 4 independent TTL serial ports
High-speed data transfer up to 6 Mbps
3.3V TTL logic level
Clearly labeled Serial Ports A–D
TX/RX activity indicator LEDs
Stable dual-layer PCB design
Supports commonly used baud rates
Compact alternative to multiple USB-TTL adapters
Technical Specifications
Conversion Type: USB to TTL (UART)
Serial Channels: 4
Logic Level: 3.3V
Communication Speed: 1200 bps – 6 Mbps
USB Interface: USB Type-C
Output Connector: XH2.54
Driver Type: VCP (Virtual COM Port)
Flow Control: Not supported
Operating Systems: Windows / Linux / macOS
Indicator LEDs:
Power LED
TX (Send) LED
RX (Receive) LED
PCB Material: FR-4
PCB Layers: 2-Layer
Typical Applications
Multi-MCU UART debugging
ESP8266 / ESP32 / STM32 development
IoT gateway serial expansion
Production testing and flashing
Industrial and automation systems
Package Includes
