AC Replacement Adapter for Casio CT-670 CT670 Keyboard Power Supply Cord AC Replacement Adapter for Casio CT-670 CT670 Keyboard Power Supply Cord Input Voltage : AC 100-240V; Input Frequency : 50-60Hz Great for Casio CT-670 Replacement,US Standard Plug. Compatible with: Casio CT-670 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.