Accessory USA AC Adapter for Casio CTK-1100 CTK-2080 CTK-2300 CTK-240 CTK-3200 Power Charger Products trademarked Accessory USA are marketed and sold exclusively by Accessory USA Store. Warranty:30 days Money Back Promised/60 Days Free Exchange With Paid Return Label/365 Days Anytime Worry-Free Warranty!**100% MONEY BACK GUARANTEE !! IF OUR PRODUCT CAN NOT WORK WELL** Output : 9.5V 1A