Control your Raspberry Pi 3 with the 7 inch Raspberry Pi Touch Screen LCD as a tablet. Attach the PCB to the RPi3 and connect it via the supplied jumper wires and DSI connector. Provide power to the Pi via the USB port and loop via the USB port. So you only need one power connection for both connections. Because the touch screen is connected via the ribbon cable, you are free to connect the HDMI connection of the Pi 3 to your monitor.