Akai Professional MPK49 | 49-Key USB MIDI Keyboard Controller with MPC Pads 49-key, 12-pad, 8-fader, 8-knob USB MIDI keyboard controller delivers groove-infused command over computer-based digital audio workstations, sequencers, and more 49 full-size, semi-weighted keys with aftertouch deliver amazing performance note after note 12 genuine MPC pads for legendary percussion programming capability 8 full-sized sliders with 3 controller banks for each for 24 sliders total; tweak, mix and adjust any MIDI assignable paramter to your hearts contentMMC/MIDI transport controls keep you in command of your DAW without having to touch the computer mouse Plug-and-play USB connection for Mac and PC; no driver installation required. Perfect for Logic, Cubase, Studio One, Reaper, Digital Performer, Ableton, etc