![Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics](https://m.media-amazon.com/images/I/61WmXKQdyLL._AC_UF894,1000_QL80_.jpg)
Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics
![Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics](https://m.media-amazon.com/images/I/51HiW4H1L2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics
![WCH CH343 USB to serial chips support 1.8V to 5V IO voltage, 6 Mbps baud rate, custom VID/PID - CNX Software WCH CH343 USB to serial chips support 1.8V to 5V IO voltage, 6 Mbps baud rate, custom VID/PID - CNX Software](https://cdn.cnx-software.com/wp-content/uploads/2022/04/CH340-vs-CH343.jpg?lossy=0&strip=none&ssl=1)