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Silicon Labs CP210x USB to UART Bridge COM3 for STC Flash Debug Console TTL-3V3 PCB Compact Converter Board - AliExpress
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TECNOIOT CP2104 USB to RS232 TTL UART 6PIN Connector Module Serial Converter | Serial Converter CP2104 USB to RS232-TTL-UART 6PIN Connector Module: Amazon.de: Computer & Accessories
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Amazon.com: YWBL-WH Converter Module CP2104 USB 2.0 to TTL UART 6PIN Module Serial Converter Board Module with Wire Support OS Windows 98/2000/XP/7/8/10 MAC OS-9 X-Windows CE Linux 2.40 or Higher Version, Module :
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