This kit comes with more than 300pcs sensors and components, all components are carefully bagged, most of them bagged separately, with combined bags pretty logical.<br><br> The breadboard comes with a power supply, you can set one side for 5VDC, and the other for 3.3VDC. It has a push switch to turn the power on or off.<br><br> In addition, we also provide a male to male USB Power Cables, this is hard to find,but other sellers do not provide.<br><br> <b>NOTE：This kit Not including the controller board.</b>