GK980 Rotary Knob Keyboard

SKYLOONG GK980 is 100 keys full size mechanical keyboard with knobs, but saves more desktop space. 

The mechanical version supports at least six hot-swappable knobs, which supports exchange with key functions if you don't want too many knobs.

The optical version has only one soldered knob, but supports customizing the knob function by skyloong software.