Feature:1. AC/DC adapter, 9V output(maximum current is 1A), input, convenient to use.2. Center negative (positive outside and negative inside) design, the connector plug is 5.5 x 2.1mm/0.2 x 0.08in.3. UL certified overcurrent/shortcircuit protection to reduce noise interference, safe to use.4. Compatible with many electronic keyboards, digital pianos, effect pedals, amplifiers, etc.5. Hookandloop cable ties are attached around the adapter for easy carrying.6. 115cm/45.3in cable length, enough to allow the connecting between device and the wall socket.Specification:Item Type: Power Supply AdapterMaterial: ABS + MetalColor: BlackCable Length: Approx. 115cm/45.3inOutput: 9V (Maximum Current is 1A)Output Mode: Positive-Sleeve, Negative-Center.Package List:1 x Power Supply AdapterNote:Power output size is 2.1mm/0.08in.