Pleace check the demo kit contents in the black box below once you open the packaging:
Kit Assembling Guide:
1) Connect the Display to the ZIF Connector (Bottom Contact) on the 2*;
2) Connect the 2* to the 1* through the 3* as shown in the above picture;
3) Connect the 1* to the PC through a microusb cable selectable in 'accessory kit'/related products;
4) Connect the power adapter 12V/1A to the 1* and power on the kit with the metal switch;