Arduino - USB/Serial Converter for Arduino Mini #A000014
Amazon.com: DaFuRui CH340G USB to TTL Serial Converter,3Pack USB to RS232 TTL Serial Adapter Converter 4 Pin Female Socket Compatible for Arduino Download Cable : Electronics
Arduino USB 2 Serial Micro - Corzotech
ARDUINO USB 2 SERIAL MICRO ARDUINO - USB-Serial converter module | USB micro (OTG); USB converter; A000107 | TME - Electronic components (WFS)
Arduino Nano Programming by USB to TTL converter || PL2303 USB To RS232 TTL Serial Uart - YouTube
FT232RL 3.3V 5.5V FTDI USB to TTL Serial Adapter Module for Arduino Mini Port | eBay
Arduino Nano as Serial Adapter - General Electronics - Arduino Forum
FT232RL FTDI USB to TTL Serial Converter Adapter Module 5V and 3.3V Arduino -UK | eBay