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UM232R - Ftdi - USB to Serial UART Development Module, Uses FTDI's FT232RL, Optional Clock and Generator Output
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WitMotion UART Convert USB to TTL RS485 RS232 and TTL to RS232 RS485 and RS232 to RS485 CP2102 3.3 & 5v input Serial Converter|usb converter|converter usboutput 5v - AliExpress
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