M-Audio KeyRig 49 user manual (English - 24 pages)
MAudio KEYRIG 49 Easy-to-Use 49-Note USB Keyboard
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 Keyrig 49 - USB MIDI Keyboard Controller in Ojo - Musical Instruments & Gear, De- Acoustic Ventures | Jiji.ng