Super Power Supply AC / DC Adapter Charger with 10ft Foot Extension Cord For Casio Keyboards CTK-591 CTK591 CTK-611 CTK611 CTK-620L CTK620L CTK-631 CTK631 Wall Barrel Plug Input: 110-220V Output: 9V 1A Warranty: 1 Year Super Power Supply products are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply Includes 10 Foot Extension Cable!