Used M-Audio M-AUDIO KEYSTATION 49 MKIII Controllers 49-Key Controllers
Amazon.com: M-Audio Keystation 49 MK3 - Synth Action 49 Key USB MIDI Keyboard Controller with Assignable Controls, Pitch and Mod Wheels, and Software Included : Everything Else
M-Audio Oxygen 49 MKV USB MIDI Controller, 49-Key | zZounds
M-Audio Oxygen 49 MkV 49-Key USB MIDI Controller Keyboard with Auto-Mapping
Amazon.com: M-Audio Oxygen 49 (MKV) – 49 Key USB MIDI Keyboard Controller With Beat Pads, Smart Chord & Scale Modes, Arpeggiator and Software Suite Included : Everything Else