IMPORTANT USAGE NOTE: This module is strictly compatible with for TTL levels only. To prevent any potential damage, ensure that it is not directly connected to an RS232 circuit. This precaution helps maintain the integrity and functionality of the module. ENHANCED CHIPSET: The Waveshare PL2303 USB to UART module incorporates the latest PL2303GS chipset, offering improved performance and compatibility over previous versions. This advanced chipset ensures reliable and efficient communication. BROAD OPERATING SYSTEM COMPATIBILITY: Designed to support a wide range of Windows operating systems, this module is compatible with Windows XP, 7, 8, 10, and 11. This ensures that users can continue to use the device with newer or older systems without compatibility issues. VISUAL INDICATORS: Equipped with three LED indicators for TXD (transmit), RXD (receive), and PWR (power), this module provides clear, visual confirmation of data transmission and device operation, enhancing the user experience by making monitoring straightforward. FLEXIBLE POWER CONFIGURATIONS: The module features three selectable VCCIO power modes via a jumper setting. Options include 5V output, 3.3V output, or power from the target board (supporting 1.8V, 2.5V, 3.3V, and 5V). This flexibility allows for easy integration with various logic levels and systems. Color: As Shown Material: PCB Package Contents: 1 * PL2303GS UART to USB Serial Port Module