Amazon.com: AKAI Professional MPK Mini MK3 - 25 Key USB MIDI Keyboard Controller With 8 Backlit Drum Pads, 8 Knobs and Music Production Software Included : Everything Else
Midi Fighter Twister
Knob controller Archives - Beat Lab
Welcome | NOB CONTROL
Lone (as in 1) - Yanko Design
Big Knob Controllers - Equipment - lines
MIDI CC knob controller in stompbox format | Fractal Audio Systems Forum
Kenton Killamix Mini USB MIDI Controller For Ableton & Other Software/Hardware Applications (blue LED & non click encoder version) | Reverb