Mini USB Adapter This board converts a USB connection into 5 volt TX and RX that you can connect straight to the Arduino Mini or other microcontrollers, allowing them to talk to the computer. It is based on the FT232RL chip from FTDI (drivers are included with the Arduino software). Photo of an original Mini USB Adapter Pinout of the original Mini USB Adapter Pinout of the revised Mini USB Adapter Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Arduino: A000075 A000004-ML A000084