Akai Professional MPK225 | 25-Key USB MIDI Keyboard & Drum Pad Controller with LCD Screen (8 Pads / 8 Knobs), VIP Software Download Included All-in-one controller with keyboard and trigger pads for performing live and composing in studio 25 semi-weighted, full-size keys with pressure sensitivity. iOS compatibility using the Apple iPad Camera Connection Kit (sold separately).USB power and plug-and-play connectivity 8 RGB-illuminated MPC-style pads (32 assignable via 4 banks) 8 control knobs and 4 switches (24 knobs and 12 switches assignable via 3 banks) Includes VIP - the ground-breaking, award-winning music software platform that provides musicians and composers with a powerful hands-on control solution for their virtual instrument and virtual effect collection Please Note: This keyboard does not come with a traditional power adapter since the keyboard is mainly used with a computer, and the USB cable is the power cable because the computer fully powers the keyboard.