rexqualis electronics basic kit w/power supply module, breadboard, jumper wire, led,resistor, comes with more than 300pcs sensors and components for fun and simple electronic projects. rexqualis 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>