Behringer BCR2000 B-Control Rotary midi controller. Sale is for 2 units: 1 is fully operational (pictured), 1 is for spares

20 assignable buttons, 8 push encoders, 24 rotary encoders.

All programmable using Mountain Utilities BC Manager. (Not included but available for free download)

I was using this as a plug in controller with great success. I have a bunch of blank overlays to include too.