UpBright NEW AC / DC Adapter For Casio DZ1 DM100 CT-420 CT-607 CT-620 CT-840 HZ600 PN5521 Keyboard Power Supply Cord Cable PS Wall Home Charger Mains PSU World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition UpBright 30 days money back guarantee. 1 full year service warranty