CH340G USB to TTL Serial Converter Module

The CH340G USB to TTL Serial Converter is a compact and reliable module that converts USB signals to TTL serial (UART) for programming and debugging microcontrollers. It features a direct USB-A plug, making it extremely easy to use without any additional cables.

Key Features:

• Based on CH340G chip with onboard 12MHz crystal oscillator
• Direct USB-A male plug — no cable needed
• 3-pin TTL header (TXD, RXD, GND) for direct connection
• Onboard yellow LED power indicator
• Supports 3.3V and 5V TTL logic levels
• Compatible with Windows, Linux, and macOS (CH340 driver required)
• Ideal for Arduino Pro Mini, ESP8266, STM32, and other UART-based boards
• Baud rate up to 2Mbps

Specifications:

• Chip: CH340G
• Crystal: 12MHz
• Interface: USB Type-A (Male) to TTL (3-pin header)
• Logic Level: 3.3V / 5V TTL
• Max Baud Rate: 2Mbps
• OS Support: Windows / Linux / macOS

A must-have tool for any electronics developer who needs a quick and reliable USB-to-serial bridge for firmware flashing and serial debugging.