THIS UNIT DOES NOT INCLUDE AN EXTERNAL POWER SUPPLY.40-Button and LCD Display Remote Control Panel40 fully illuminated LED backlit buttonsSlim design: 1RU, depth 2.8cmFull function programmable control panelConfigurable as cut-bus, multi-cutbus or menu driven source / destination switching control panelControl up to 8 levels, across 16 breakawaysKnown Issues:One button cap is missing, but this is cosmetic onlythe button itself still functions properly.