Lets review MIDI keyboards Nektar Impact LX 49 and 61, they are variations of one model with 49 and 61 full-sized velocity-sensitive keys. There is ability to choose one of 4 velocity curves or one of 3 fixed velocity levels. Keyboard has octave shifting buttons; pitch-bend and modulation control wheels; 8 velocity-sensitive drumpads ( there is also ability to chose for them one of 4 velocity curves or one of 3 fixed velocity levels ); 8 potentiometers; 9 30 mm faders; 9 programmable buttons; 6 transport control buttons; 5 set and recall parameters sets buttons; pedal input ( pedal itself isn’t bundled with controllers ); and USB port ( through which they are connected to computer or Apple iPad via camera connection kit and from which they are fully powered ). MIDI keyboards are compliant with Windows XP, Vista, 7, 8 and newer and Mac OS X 10.7 and newer operating systems, there is no need in additional drivers for their work. They are tightly integrated with modern DAWs and their instruments : Avid Pro Tools, Ableton Live, Steinberg Cubase, FL Studio, Cackewalk Sonar, REAPER and others. Package contains : Nektar Impact LX 49 or 61 MIDI keyboard itself, USB cable and user’s guide. These are very functional MIDI keyboards with full spectrum features : keys, drumpads, pitch-bend and modulation control wheels, control buttons, including programmable, and adequate price. One “minus” is their blocky design, but this is a matter of taste and different people have different tastes.