In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. All the power of the WK3000 with a built-in disk drive! The 790 new tones of the new Casio WK series is going to make the WK the best selling keyboards for this year. The totally new Z chip technology is knocking people out as they hear the best keyboard developed by Casio in years. This 76 note powerhouse will make all others in the catagory obsolete. Power adaptor included!