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Some ESP-family cheap boards manufacturers had recently moved to CH9102X serial port chip (from CP2102), and it seems the drivers for CH9102X are hard to find.

Where can I download them?

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It can be found on manufacturer's website: http://www.wch.cn/search?q=CH9102&t=downloads

Please note, that some drivers' downloading pages are only available in Chinese, so make sure you open Chinese (not English) site version.

Windows CDC driver: http://www.wch.cn/downloads/CH343CDC_ZIP.html

Windows SER driver: http://www.wch.cn/downloads/CH343SER_ZIP.html

MacOS driver: http://www.wch.cn/downloads/CH34XSER_MAC_ZIP.html

P.S. For Windows 7 x64 I recommend using the first one (CDC). SER driver didn't work for me because of signing issues.

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