CH340N Type-C USB to TTL Serial Adapter 5V 3.3V Converter

The CH340N Type-C TTL Converter Module is a compact, reliable USB-to-TTL serial adapter built for makers, developers, and electronics enthusiasts. Supporting both 5V and 3.3V operating voltages, this tiny board makes it effortless to connect your computer to microcontrollers, single-board computers, and embedded systems via a modern USB Type-C interface.

Whether you're flashing firmware, uploading sketches to an Arduino, debugging serial output, or programming a bare MCU, this adapter delivers a stable, plug-and-play serial bridge without the hassle of bulky converters.

Key Features

• CH340N Chip: Industry-proven USB-to-serial IC with broad OS driver support (Windows, macOS, Linux)
• Dual Voltage Output: Selectable 3.3V or 5V logic level to match your target device
• USB Type-C Connector: Modern, reversible connector for fast, secure connections
• Ultra-Compact Form Factor: Just 1.2 × 2.4 cm — fits anywhere on your workbench or project board
• SMD Package: Surface-mount design for low profile and robust solder joints
• Lightweight: Only 2.04 g — ideal for portable and embedded applications
• Ready to Use: No complex configuration needed — drivers install automatically on most systems

Specifications

What's in the Box

Available in convenient quantity packs: 1 pc, 5 pcs, or 10 pcs — stock up for your lab or project fleet.

Perfect For

• MCU firmware flashing & programming
• Arduino & ESP8266/ESP32 serial uploads
• Serial terminal debugging
• Raspberry Pi & single-board computer UART communication
• DIY electronics prototyping

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Frequently Asked Questions

Q: What does the CH340N Type-C TTL Converter Module do?

A: The CH340N Type-C TTL Converter Module bridges your USB Type-C port to a TTL serial (UART) interface, allowing your computer to communicate directly with microcontrollers, embedded systems, and development boards at either 3.3V or 5V logic levels. It's widely used for firmware flashing, serial debugging, and MCU programming.

Q: Is the CH340N module compatible with Windows, macOS, and Linux?

A: Yes. The CH340N chip has broad driver support across Windows (7/10/11), macOS, and Linux. On most modern systems, the driver installs automatically when you plug in the module. Manual drivers are also freely available online from the chip manufacturer.

Q: How do I select between 3.3V and 5V on this adapter?

A: The module supports both 3.3V and 5V supply and logic voltages. Simply connect it to the appropriate power rail on your target device, or use the onboard voltage selection (if equipped) to set the correct logic level before connecting to your MCU to avoid damaging 3.3V-only components.

Q: How many units can I order at once?

A: This listing offers three quantity options: 1 pc, 5 pcs, or 10 pcs. Buying in multi-packs is a great way to keep spares on hand for multiple projects or to share with fellow makers.

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.