Samson's Graphite M25 USB MIDI Controller gives you all the music production control you need for home studio and mobile applications. Packed into an ultra-portable design, the Graphite M25 features a 25-key velocity-sensitivemini keyboard, trigger pads with aftertouch, a full-featured control surface and additional programmable functions for advanced playability and customization. With iPad/USB bus power and plug-and-play operation, the GraphiteM25 makes it easy to express your most dynamic musical ideas, no matter where creativity strikes. Features include: 25-key velocity-sensitive mini keyboard, Ultra-portable design, perfect for home studios and on-the-goapplications, Programmable master encoder, eight MIDI assignable knobs and transport controls for hands-on control over your DAW and virtual instruments, Four velocity-sensitive trigger pads (two banks each) with aftertouch fordrum sounds and samples, Control Change mode sets trigger pads to send control change messages, Program mode sends program change information, Four customizable Preset options, Dedicated Octave and Sustain buttons, Pitch Bendand Modulation strips, Mini USB port, Pad and USB bus powered. 
Includes mini USB to USB cable & Free Graphite Editor Software download available