Akai MPK49 Keyboard Controller 49 key USB/MIDI + Red Pad Upgrade + Arpeggiator 825213002319 | eBay
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Akai MPK49 49 Key USB MIDI Controller with MPC Pads : Musical Instruments - Amazon.com
AKAI MAX49 USB MIDI keyboard
Akai Professional MPK249 49-Key Controller, Black-on-Black | Music & Arts
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Amazon.com: AKAI Professional MPK249 - USB MIDI Keyboard Controller with 49 Semi Weighted Keys, Assignable MPC Controls, 16 Pads and Q-Links, Plug and Play : Musical Instruments