Wall Home AC Power Adapter Cable Cord for Casio CTK 541 CTK-541 Digital Electronic Keyboard Wall Home AC Power Adapter Cable Cord for Casio CTK 541 CTK-541 Digital Electronic Keyboard High Quality AC Wall Power Charger,Input: AC 100-240V, 50-60Hz; Output: DC 9V 850mA, Tip : Center(-)Outer(+). Great for Casio 9V 850mA(or below)Replacement, US Standard Plug, Short circuit Protection.Light in weight and with heavy-duty cable-wire. Compatible with: Casio CTK 541 Digital Electronic Keyboard. 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.