Amazon.com: Mega 2560 R3 for Arduino + USB Cable / Mega 2560 R3 Atmega2560-16au Board (Compatible with Arduino)(cheap,but Not for Beginners,replace the 16u2 (Usb Chip),you Need to Download the USB Driver From
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led - Computer not detecting my Arduino MEGA 2560 R3 - Arduino Stack Exchange
Arduino Mega2560 only shows as "other device" in the devise manager
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1pcs Nano 3.0 controller compatible for arduino nano CH340 FT232 USB driver For arduino |nano controller|controller controlusb arduino cable - AliExpress
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