Using this flat HDMI cable is a breeze. First, locate the HDMI ports on your two devices. Then, simply plug one end of the cable into the HDMI port of one device and the other end into the HDMI port of the second device. When using it for your Raspberry Pi project, you can neatly position the Pi behind the screen without worrying about loose cables. As for maintenance, keep the cable away from sharp objects to avoid cuts. Also, don't bend it too sharply as this might damage the internal wires. Store it in a cool, dry place when not in use.