Features: Upgrades your projects with CH340G USB to TTL Module, alternative to PL2303, for communication between USB and TTL serial devices. Featurings Two voltages option (3.3V and 5V), this module ensures easy integration into various electronic projects while maintaining stable performances thanks to its CH340G chip. for developers, hobbyists, and engineers, this module for anyone working on microcontroller baseds projects or requiring efficient data transmission. Whether in home, educational setting, or professional development environment, this module supports multiple operating systems, making for any project scenario. with its included programming cable, the CH340G module simplifies firmware updates and debugging, ensuring that your electronic projects both flexible and future proof. Specifications: Materials: Styles: 1PC, 3Pcs (optional) Size:51x20mm/2x0.748inch Package Includes: 1/3Pcs CH340G Module note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.