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
Classic Nano is detected as unknown FT232R USB UART (Windows) – Arduino Help Center
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Prolific PL2303 USB to UART RS232 Serial Driver v.3.8.25.0, v.3.8.18.0 download for Windows - deviceinbox.com