AC Power Adapter fits Casio CA-100 CT-625 CT-638 CT-700 CT-770 CTK-3000 AC Power Adapter fits Casio keyboard CA-100 CT-625 CT-638 CT-700 CT-770 CTK-3000 Input Voltage : AC 100-240V Input Frequency : 50-60Hz Adapter Great for Replacement,US Standard Plug, Short circuit Protection.Light in weight and with heavy-duty cable-wire. Compatible with:Casio CA-100 CT-625 CT-638 CT-700 CT-770 CTK-3000. 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.