Step 2: Physically Connect the Boards
Now you will physically connect the USI Development Board to the Arduino Zero.
Carefully insert the development board pins on the underside of the board into the Arduino Zero headers. Make sure that the pins line up perfectly with the headers, and that the pins aren't bent.
Insert the Micro-USB cable that came with the kit into the Arduino Zero Programming Port, and connect it to your computer. You should see the USI Development Board's status and power LEDs light up.