Komplete Kontrol Mk S61 Midi Controller Keyboard (MB1480) Check Availability

Can be connected to via USB to control DAW software such as Ableton Live/Logic or can be used standalone, connecting to sound modules/synths via midi.

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Tech and software:

The drivers, and the 'controller editor' can be downloaded from the link for free (Windows and Mac):-

Drivers & Controller Editor

The 'Controller Editor' allows the device to have mappings loaded for a variety of different software (Ableton Live 9 etc). It doesn't include the above software.

It can also have custom mappings applied to each pad / button, for advanced users (scripting to make it useful maybe required), using it in fully standard midi mode.