Save the batteries for when you're away from home. This AC adapter plugs you into endless hours of playing, not to mention saves you a bundle on batteries. This high quality adapter is designed specifically for your Casio Keyboard.
• Power output - 9.5V DC
• Compatibility with:
• SA 78/77/76/47/46
• CTK 240/245/1100/1150/1200/2200/2400/3200/3500/4200/4400
• WK 220/225
• LK 120/125/136/137/190/260/265/280