HQRP AC Adapter/Power Supply for Yamaha Piaggero NP-11 / NP11 / NP-31 / NP31 Keyboards Replacement [UL Listed] plus HQRP Euro Plug Adapter HQRP&reg; Wall AC Adapter plus HQRP&reg; Euro Plug Adapter; Input: AC 100V - 240V; Output: DC 12V; UL Listed; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise. 200 days warranty!