Extend your battery life by using this optional AC adapter while you're at home or near an electrical outlet</br>12V Adapter for CTK 5000?? WK 500 / 3300 / 3800?? CDP 100 / 200?? PX 100 / 110 / 120 / 200 / 300 / 310 / 320 / 400R / 500L / 575R / 700 / 720</br></br>Product Description</br></br>The Casio AD12M power supply is compatible with the following Casio keyboard models: CTK-5000?? WK-500?? WK-3300?? W