One used fully working MPC 4000. All pads and sensors work. Screen is working with no lines. 60 gb hard drive installed. 400mb ram installed. This unit also has the digital spdif and wordclock card installed for digital in and out. The only issue is the pad bank assign light above D and F (The little green light above the pad bank letters A,B,C,D,E,F) the little green light above buttons D and F do not light up when you press either of those two pad banks as pictured. All the pad banks do work when pressed, it is just those 2 lights for button D and F. Item shows some signs of use. Power cord is also included.