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How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base
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Using serial ports as of COM3 for ProTool project transfer from the PC to the panel - ID: 13396821 - Industry Support Siemens
![Network Serial Port Kit - Share and access any serial devices or create virtual null-modem cables over a TCP/IP network or the Internet. Network Serial Port Kit - Share and access any serial devices or create virtual null-modem cables over a TCP/IP network or the Internet.](https://www.fabulatech.com/img/products/nspk/nspk-scr-1532443494.webp)
Network Serial Port Kit - Share and access any serial devices or create virtual null-modem cables over a TCP/IP network or the Internet.
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COM port number changes when connecting board on different ports or in bootloader mode – Arduino Help Center
![How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base](https://media.plugable.com/images/kb/714099/set-com-windows-004-max.png)