Novation Launchkey 25 MK2 25-key USB MIDI Controller with 1 Year Free Extended Warranty MK2 version of Novation's 25-note USB keyboard controller for Ableton Live 16 velocity-sensitive RGB pads, 8 knobs, and dedicated navigation and control buttons Software for Mac and PC Fully USB bus-powered and class compliant; works without drivers or power cable Software for Mac and PC, Including: Ableton Live Lite, XLN Audio Addictive Keys, Novation Bass Station and V Station virtual instruments and over 4GB of Loopmasters samples