HQRP AC Adapter for Casio CTK-2090 / CTK2090 / CTK-2400 / CTK2400 / WK-220 / WK220 / WK-225 / WK225 Keyboards Power Supply Cord plus HQRP Euro Plug Adapter HQRP&reg; AC Adapter plus HQRP&reg; Euro Plug Adapter; Input: 100V-240V AC; Output: DC 9.5V; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise. 1 Year warranty!