M-Audio Keystation Mini 32 MK3, midi keyboard with a dynamic keyboard of 32 mini keys and a very small size so that it fits in a backpack.

M-audio Oxygen Pro Mini, USB MIDI Keyboard with 32 velocity-sensitive, semi-weighted mini-keys, 8 RGB, backlit, assignable, velocity-sensitive pads with Note Repeat for beat production, clip launching, and more and 4 assignable faders, knobs & buttons for controlling virtual instruments, mix plugins, DAW controls, and more.

Native Instruments komplete kontrol M32, midi controller with 32 keys and 8 control buttons (touch-sensitive).

Arturia midi keyboard keyStep, with 32 velocity and aftertouch keys, 8 apeggiator modes and 8 polyphonic step-sequences.