Amazon.com: WitMotion USB-UART Converter 3-in-1 Multifunctional Serial Adapter, with CH340 Chip, Compatible with Windows 7/8/10, Linux, Arduino, 300-1.5 Mbps Baud Rates, 12-Month Warranty : Electronics
USB-UART to Select an I/O Voltage of 3.3Vdc or 5Vdc. – Oz Robotics
USB UART click - Breakout board for FT232RL chip
Amazon.com: Waveshare FT232 USB to TTL(UART) Communication Module, USB Type C Connector, Compatible with Mac OS, Linux, Android, Wince, Windows 7/8/8.1/10/11... : Electronics
Amazon.com: [Communication] PL2303 USB UART Board (Micro) USB to Serial TTL UART Module Converter Adapter @XYGStudy : Electronics
Addicore CP2102 USB to Serial (UART) Converter Module
USB to Serial UART 5V TTL Header Cable, UART Interface
SparkFun USB UART Serial Breakout - CY7C65213 - BOB-13830 - SparkFun Electronics
USB UART Adapter for Autoquad and Multiwii | Flyduino
USB-UART 2 Module Kit — ameriDroid
USB UART Board - FTDI USB to Serial Adapter Board
Amazon.com: USB to TTL Serial 3.3V UART Converter Cable with FTDI Chip Terminated by 6 Way Header, Works with Galileo Gen2 Boards/BeagleBone Black/Minnowboard Max and More : Electronics
DEBO USB2UART 2: Developer boards - USB type-A to UART, CP2102 at reichelt elektronik