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
Amazon.com: FT232 USB UART Board (Type A) FT232R FT232RL to RS232 RS485 TTL Serial Converter Module Kit @XYGStudy : Electronics
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
Amazon.com: [Communication] PL2303 USB UART Board (Micro) USB to Serial TTL UART Module Converter Adapter @XYGStudy : Electronics
UMFT230XB-WE - Ftdi - DEV BOARD, USB-UART, WIRE END
USB-SERIAL-F
PL2303HX USB-UART Convertor with Cable | Makerfabs