For Sale I have my AKAI MPK 49 keyboard. It doesn't have/need a power cable to run, you can just plug it straight into your computer. It's in excellent condition other than one of the little black cover things that goes over one of the knobs on the top right (pictured).
Great bit of kit, well built and looks nice. Very good functionality and works very well with FLStudio. Easy to setup and does not take up too much room on my desk.
I have not yet found anything that I dislike about the product.