Arduino Mini USB Adapter
The Arduino mini USB adapter 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 theFT232RL chip from FTDI (drivers are included with the Arduino software).
You can find here your board warranty informations.
You can find in the Getting Started section all the information you need to configure your board, use the Arduino Software (IDE), and start tinker with coding and electronics.