15A/125V/1875W Max. Add more outlets! Converts one outlet into three. This 3-outlet adapter is rated at 15 amps total. Three devices may be plugged into the adapter, but their combined load must be less than 15 amps or 1875 watts. For use with 2-prong plugs only. This is a polarized adapter. It has a polarized plug (one blade is winder than the other) and polarized outlets (one slot is longer than the other). The polarized plug is not intended to be used with nonpolarized outlets (where both slots are the same size). A polarized outlet is intended to fit with a polarized plug in only one way - the longer slot with the wider blade. UL Listed.