![Mini USB Cable - 3m](http://www.contempoviews.com/cdn/shop/products/13993660320_1000x666.jpg?v=1505335250)
This is a popular USB cable - type A to type Mini. No matter connecting arduino main boards to your computer, or for the connection between a usb storage device ,even mobile phone, it plays an important role everywhere. It's a 3m cable and long enough for normal use.