Maxinbuy 12V 2A AC Power Replacement Adapter for Yamaha Keyboard PSR-7 PSR-70 PSR-73 PSR-730 PSR-74 PSR-740 12V 2A AC Power Replacement Adapter for Yamaha keyboard PSR-7 PSR-70 PSR-73 PSR-730 PSR-74 PSR-740 High Quality AC Wall Power Charger,Input Voltage : AC 100-240V; Input Frequency : 50-60Hz. Great for Yamaha Keyboard 12V 2A(or below)Replacement,US Standard Plug. Short circuit Protection Light in weight and with heavy-duty cable-wire. Build in Dynamic IC, Charger IC & Power fuse for rapid charging and over charge protection. 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.