Reliable USB-C to RS232 Communication Module: Plug-and-play serial connectivity for modern systems
The 7Semi USB-C to RS232 DB9 Converter Module based on the Silicon Labs CP2102 chipset offers a dependable and cost-effective solution for interfacing modern USB-C ports with legacy RS232 serial devices. With a standard DB9 female connector and USB Type-C interface, this converter is ideal for applications involving industrial automation, embedded system debugging, network configuration, and legacy equipment communication. Whether you’re connecting to modems, POS terminals, CNC machines, or microcontrollers, this module ensures stable and noise-resistant data transmission.
This compact module is powered via USB and requires no external power supply. It features driver-free support on most modern OS platforms, including Windows, Linux, and macOS, allowing easy plug-and-play setup. The CP2102 chipset enumerates as a COM port and supports customizable baud rates, offering seamless integration into new or existing systems. Its robust build and excellent compatibility make it a preferred tool for field engineers, system integrators, and developers working with RS232 interfaces.
Key Features and Benefits

USB Type-C Interface: Modern, reversible connector compatible with newer laptops and devices

Standard DB9 Female Output: Direct connection to RS232 serial devices with no adapter needed

CP2102 Chipset: Reliable Silicon Labs bridge with stable COM port mapping and configurable baud rates

Driver-Free on Modern OS: Native support on Windows 10/11, Linux, and macOS ensures quick setup

Compact and Portable Design: Ideal for fieldwork, prototyping, or permanent installations

Wide Application Compatibility: Suitable for routers, PLCs, modems, barcode scanners, CNCs, and test equipment

Plug and Play: Simple connection without external power or configuration hassles

Resources
CP2102 datasheet