Midi keyboard daw controller series akai mpk keyboard semi weighted action keys number of keys 61 assignable sliders 8 number of trigger pads 16 assignable rotary encoders 8 programmable function keys 8 interface usb midi connectors 1 x midi in 1 x midi out software included ableton live lite air music tech hybrid 3 sonivox twist 2 sonivox eighty eight ensemble akai pro mpc essentials