The Novation 61 SL MK II is a USB MIDI Keyboard controller that combines a professional quality semi-weighted keyboard with a full DAW and plug-in control surface. The Novation 61 SL MK II keyboard controller features back lit LED buttons, LED ringer encoders, an impressive 144-character display and 56 knobs with simple, fast mapping. All of these features and more make this bit of kit from Novation a must-have for any producer or musician.