MaxLLTo 6ft Extra Long 9V 850mA AC Power Replacement Adapter For Casio CTK2100 CTK-2100 Keyboard Wall Charger Power Supply Cord PSU 9V 850mA AC Power Replacement Adapter For Casio CTK2100 CTK-2100 Keyboard Wall Charger Power Supply Cord PSU 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. Compatible with:Casio CTK2100 CTK-2100 Electronic Keyboard. 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.