UNO R3 Super Starter Kit for Learning...
FT232RL converter from USB to serial UART used to connect the computer to the microcontroller.
The CH340G USB to UART converter module is designed to easily add USB connectivity to your microcontroller projects.
USB to RS485 Serial Converter
The USB converter to Serial CP2102 is useful for communicating between a 3.3 V or 5 V micro controller and your computer.
Micro USB to Blue CP2102 converter mode used to generally connect computers to serial-powered equipment.
This module provides simple solutions to update your serial designs to USB connectivity. It is basically used in microcontroller and computer connection.
CH340G USB to Serial Converter Module with Micro USB
USB-UART Module Kit
Convertor USB at UART FT23RL
The convertor USB at UART FT232RL is commonly used for communication between the microcontroller and the computer.
FT232RL Module USB Serial Blue Convertor