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WCH CH343 USB to serial chips support 1.8V to 5V IO voltage, 6 Mbps baud rate, custom VID/PID - CNX Software
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6. Fix could not find USB device with vid=0x16c0 pid=0x5dc vendor='www.fischl.de' product='USBasp' - YouTube
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usbserial - Custom USB VID/PID - make Windows 7 & 8 automatically choose usbser.sys driver - Stack Overflow
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