Check the listing for details. Novation Launchkey 25 MK4 25-key Keyboard Controller. Condition: Very Good - Refurbished. Listed at 170.99 USD. Ready for Launch: Next-gen DAW Integration and Production Power Novation’s Launchkey MIDI controllers have cemented their standing as one of the music world’s most formidable tools, blending multiple modes of production and composition into a comprehensive, streamlined machine. With Launchkey MK4, Novation has catapulted the controller into an echelon of unrivaled interoperative integration, threading the needle between the physical and virtual worlds and affording a bounty of artistic possibilities. Given the music-making landscape is more diverse than ever, a MIDI controller that balances power, precision, and compatibility is essential. Sweetwater’s studio scholars agree that the Novation Launchkey MK4 is an inviting gateway to cutting-edge composition.