B00FYQWWOW Samson Graphite M25 Mini USB MIDI Controller

25-key velocity-sensitive mini keyboard
Programmable master encoder, eight MIDI assignable knobs and transport control for hands-on control over your DAW and virtual instruments
Four velocity-sensitive trigger pads (two banks each) with after touch for drum sounds and samples
Dedicated Octave and Sustain buttons, Pitch Bend and Modulation strips
iPad and USB bus powered