Amazon.com: NOYITO CP2102 Micro USB to TTL Serial Module UART 6 Pin Serial Converter STC Downloader (Pack of 2) : Electronics
5PCS CP2102-GMR QFN Silicon SILABS CP2102 QFN28 SINGLE-CHIP USB TO UART BRIDGE new and original - Price history & Review | AliExpress Seller - Fantasy Electronics CO., Ltd | Alitools.io
CP2102 module USB to 3.3V TTL [CP2102 module] - US $1.80 : HAOYU Electronics : Make Engineers Job Easier
CP2102 USB to Serial/UART with USB Type-C Plug from Solder Party on Tindie