Using FT232RNL chip solution, ensures high-speed communication with stable performance and good compatibility. Features half-hole technology and a compact design for easy welding, integration, and embedding. Supports serial communication rates from 300bps to 3Mbps. Onboard self-restoring fuse and ESD protection provide stable current and voltage output, protecting against overcurrent and overvoltage for safe and reliable operation. Includes a serial port transceiver indicator light to monitor signal status. VCC switching pad is provided; default setting is 3.3V TTL, can be modified to 5V. All functional pins of the chip are accessible to support secondary board integration. Equipped with a Type-C interface for smooth, secure connection that prevents reverse insertion. Product type: USB to UART TTL level Supply voltage: 5V Serial port (TTL level): 3.3V/5V Communication rate: 300bps ~ 3Mbps Compatible with: Windows 7/8/8.1/10/11, Linux, Android, WinCE Color: Blue Material: PCB Package Contents: 1 x Serial Communication Module Note: The package includes only the items listed above. Lighting effects and display differences may cause slight variations in color between the image and the actual product. Measurement error allowed within +/- 1-3cm.