20pcs CP2102 USB to TTL Serial Adapter Module USB to UART Converter Debugger Programmer for Pro Mini OPEN-SMART for Arduino - products that work with official for Arduino boards
CP2102 UART Module: Pinout and Use it to Program Arduino Pro Mini
CP2102 Programmer For Arduino - Share Project - PCBWay
CP2102 USB UART Board (type A) CP2102 USB to UART Module, USB type A connector