Compare to other breadboard power supply designs, this one provided mini-USB port like the seeeduino , you can toggle the switch and select your power source. (USB or dc jack). We also used JST-2pin power jack ,the one as on seeeduino.
With this board, you can send power to both power lane of the breadboard, and each side has an on/off switch.
Want to know more about the soul of LinkIt ONE? MediaTek Labs provides LinkIt SDK for Arduino, with which you develop Sketches in Arduino IDE that you run on LinkIt ONE. There is a Developer’s Guide that will help you get started with the SDK and LinkIt APIs, as well as an online API reference. And when you come to taking your prototype towards deployment, there is a Hardware Reference Design package containing schematic, layout and datasheets to help you create your own product using Seeed Studio’s Fusion PCBA Service.