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Amazon.com: TP-Link USB 3.0 to Ethernet Adapter, Portable 3-port USB Hub with 1 Gigabit RJ45 Ethernet Port Laptop Network Adapter, Supports Win 7/8/8.1/10, Mac OS X (10.6-10.14), Linux OS and Chrome OS : Electronics
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Amazon.com: Anker 10 Port 60W Data Hub with 7 USB 3.0 Ports and 3 PowerIQ Charging Ports for MacBook, Mac Pro/Mini, iMac, XPS, Surface Pro, iPhone 7, 6s Plus, iPad Air 2,
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Amazon.com: Anker 10 Port 60W Data Hub with 7 USB 3.0 Ports and 3 PowerIQ Charging Ports for MacBook, Mac Pro/Mini, iMac, XPS, Surface Pro, iPhone 7, 6s Plus, iPad Air 2,
![COM port number changes when connecting board on different ports or in bootloader mode – Arduino Help Center COM port number changes when connecting board on different ports or in bootloader mode – Arduino Help Center](https://support.arduino.cc/hc/article_attachments/360016532020/COM_port_changes_0.png)