Comes with the correct power supply. There's some residue on the side, and the Program Monitor Select and Memory 1 buttons don't work. But it's easy to work around these buttons.

Using this Roland V - 1600HD live video switcher is straightforward. First, connect it with the provided correct power supply. When operating, since the Program Monitor Select and Memory 1 buttons don't work, just use other available buttons to achieve the same functions. Be careful not to touch the side with residue to avoid getting it on your hands. For maintenance, keep it in a dry and clean place. If there's more dust on it, use a soft cloth to gently wipe it down.