R3 Development Board with CH340G and MEGA328P SMD Chip
This active component development board features a CH340G USB interface and MEGA328P microcontroller at 16MHz, with strong marketplace activity as evidence of demand.
$3.71 $7.73
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The R3 development board integrates the CH340G USB-to-serial converter and the MEGA328P microcontroller running at 16MHz. These two chips are surface-mounted (SMD) on the board. This setup is typical for microcontroller projects that require USB connectivity and standard processing capabilities. While detailed technical documentation is not provided in the listing, these component choices indicate a board suited for development workloads compatible with the MEGA328P's architecture.
The listing categorizes this product as an active component, reflecting its role as a fundamental electronic module rather than a standalone device.
Key technical details from the listing
- Includes CH340G USB interface chip for serial communication
- Features MEGA328P microcontroller running at 16MHz
- SMD (Surface-Mount Device) packaging of the integrated chips
- Classified as an active component for development purposes

Good marketplace activity but limited official documentation
According to AliExpress market signals, this development board has sold thousands of units and maintains a high rating among buyers. While this shows strong demand and positive user reception at the marketplace level, the listing provides minimal technical or user guide information, so buyers should anticipate sourcing support and documentation elsewhere for development use.

| Current price | $3.71 |
|---|---|
| Previous price | $7.73 |
| Listed reduction | 52% |
| Units sold | 5,493 |
| Buyer rating | 98% positive |
| Seller | Stone's Store |
| Listing images | 6 |
