PHC DC-3Y 2.1mm x 5.5mm DC Barrel Plug Splitter, 1 Female Jack to 2 Male Plugs 1-to-2 2.1mm x 5.5mm Plug Splitter Female Jack - 2.1mm ID x 5.5mm OD 2 Male Plugs - 2.1mm ID x 5.5mm OD ID - refer to inside diameter; OD - refer to outside diameter Max Amp - 2 amp