Accessory USA Replace Adapter for Yamaha Portatone PSR-290 PSR-190 PSR-2 YPT-230 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 : 12V 1A