AC Adapter For Casio CTK-720 CTK720 Keyboard Charger Power Supply Cord PSU AC Adapter For Casio CTK-720 CTK720 Keyboard Charger Power Supply Cord PSU High Quality AC Wall Power Charger,Input: AC 100-240V, 50-60Hz; Output: DC 9V 850mA, Tip : Center(-)Outer(+). Compatible with: Casio CTK-720 Digital Electronic Keyboard. Great for Casio 9V 850mA(or below)Replacement, US Standard Plug, Short circuit Protection.Light in weight and with heavy-duty cable-wire. Note: Please make sure the DC output and tip size of ac adapter are accordant before you bid. Industry Quality : Over Voltage Protection, Over Heat Protection, CE MONEY BACK GUARANTEE -MONEY BACK GUARANTEE - We are Company that wants your Repeat Business so, if You Do Not Like our Product or Don't Want It For Any Reason, We Will Happily Accept The Return and Give Your Money Back. No Questions Asked. 30 Days Money Back Guarantee - 24 Months - Exchange.