USB-UART to select an I/O Voltage of 3.3Vdc or 5Vdc. – Oz Robotics
Amazon.com: WITMOTION USB-UART Converter 3-in-1 Multifunctional(USB to TTL/ USB to RS232/ USB to RS485) 3.3-5V Serial Adapter, with CH340 chip Compatible with Windows 7,8,Linux,Arduino for Development Projects : Electronics
USB 2.0 to UART TTL 6 Pin 3.3V and 5V Power – DitroniX.net Electronic Innovation IoT Designs
USB To Uart 5V/3.3V Serial Adapter - RobotShop
Amazon.com: FT232 USB UART Board (Micro) FT232R FT232RL to RS232 RS485 TTL Serial Converter USB Micro Connector Module Kit @XYGStudy : Electronics
Addicore CP2102 USB to Serial (UART) Converter Module
FTDI USB to TTL UART Adapter - Reliable SD cards for industrial Raspberry Pi
USB UART Adapter for Autoquad and Multiwii | Flyduino
Amazon.com: WITMOTION USB-UART 6-in-1 USB to Serial Converter, Multifunctional (USB to TTL/RS485/232, TTL-RS232/485, 232 to 485), Universal Adapter Module with CP2102 Compatible with Windows 7/8/10,Linux, Arduino : Electronics
USB to Serial UART 5V TTL Header Cable, UART Interface
SparkFun USB UART Serial Breakout - CY7C65213 - BOB-13830 - SparkFun Electronics
Pmod USBUART: USB to UART Interface - Digilent
USB UART/I2C Debugger for Raspberry Pi, Arduino from SB Components on Tindie
Amazon.com: USB to TTL Adapter, USB to Serial Converter for Development Projects - Featuring Genuine FTDI USB UART IC 'FT232RL' : Electronics
USB UART 4 click - USB-to-UART interface module | MikroElektronika
Amazon.com: Geekstory CP2102 6 in 1 USB-UART Serial Adapter Module USB to TTL 485 232,TTL to 232 485,RS232 to 485 + 4P Dupont Cable Jumper Wire Female to Female, for Windows, Linux,
USB UART click - Breakout board for FT232RL chip
Amazon.com: Waveshare USB UART Board (Type A) Single-Chip USB to UART Data Transfer Convertor Module Development Board Supports Mac, Linux, Android, Wince, Windows 7/8/8.1/10/11... : Electronics
FT232 USB To UART (TTL) Communication Module, USB-C Connector | FT232 USB UART Board (Type C)
μArt USB-UART Converter - Signoid | Mouser
Amazon.com: [Communication] PL2303 USB UART Board (Micro) USB to Serial TTL UART Module Converter Adapter @XYGStudy : Electronics