This Gefen HDMI 4Kx2K 4×4 matrix is really easy to use. First, connect the device to the correct power supply that comes with it. Make sure all the HDMI cables are properly plugged in between your sources and displays. When you're using it, don't try to force any cables in. Just gently insert them to avoid any damage. For maintenance, keep it in a cool and dry place. If you notice any dust, use a soft, dry cloth to clean it. And always turn off the power before making any cable changes. That way, you can enjoy the great performance of this matrix for a long time.
