Addicore CP2102 USB to Serial (UART) Converter Module
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CP2102 MICRO USB to UART TTL Module 6Pin Serial Converter STC Replace FT232 NEW | eBay
Amazon.com: Atnsinc 3Pcs CP2102 USB 2.0 to TTL 5Pin Serial Adapter USB to TTL Serial Converter Module for UART STC 3.3V and 5V with Dupont Wire (USB 2.0 to TTL CP2102) : Electronics