Features: The CH341A USB Multi Converter enables seamless USB to communication, supporting UART, I2C for connectivity with 3.3V/5V and full USB 2.0 compatibility. This USB adapter features configurable data bits (5 8) and synchronous 2/4 wire interfaces, while its standard USB A male connector ensures broad device compatibility without driver modification. Ideal for electronics enthusiasts, embedded developers, and professional requiring upgrades or hardware debugging tools. Perfect for industrial automation setups, microcontroller programming stations, and projects demanding USB conversion with flexible adaptation. Engineered with plastic housing, this USB to UART converter delivers stable data transmission across I2C's four speed modes and SPI interfaces, streamlining platform communication tasks. Specifications: Component:Plastic Size:Approx.55x33mm/2.17x1.3inch Package Includes: 1Pc CH341A USB Converter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.