9V DC Power Supply 1A AC Adapter, DC 9V Power Cord, 9Volt 1000mA Power Adapter with 5.5mm x 2.5mm Cord Plug [Output tip: Tip Inner Positive (+)

["【INCOMPATIBILITY Pedal/Keyboard】Incompatible with Keyboard and Guitar Pedal, because the polarity of DC Plug is different from them. The item is Tip center Positive \"+\", not negative \"-\"","【Product specification】 Input： ac 100-240V , 50-60Hz. DC output: 9V 1A(1000mA).9V DC Power Supply 1A works with device that draws less than 1A, compatible with 1000mA, 850mA, 500mA, 300mA, ..80% full load is recommended.","【5.5mm x 2.5mm Tip Positive Plug】Universal DC Tip: 5.5mm x 2.5mm, not for 5.5 x 2.1mm,DC plug polarity: Center Positive (+). Please kindly confirm the polarity and Output Tip Plug Size before ordering.","【Compatible Device】 This adapter was the perfect replacement for your lost 9V power cord. Such us ADSL Router Arduino, Elliptical Machine, Schwinn Bike, Fan Record Player,Musical Instruments."]