CP2103-GM (5pcs) Silicon Labs USB to UART Bridge QFN28 | eBay
CP2103
CP2102 USB UART Board (mini) CP2102 USB to UART Module, USB mini connector
Cp2102 Usb Uart Board (type A) Cp2102 Usb To Uart Module Usb Type A Connector Supports Mac Linux Android Wince Windows 7/8/8.1/. - Demo Board - AliExpress