Yeah it's a CZ-3000 or CZ-5000. Hard to tell from the video. I used to have the CZ-1000. I wish Casio would come out with a newer CZ series. They were quite popular in the 80's.

There's another video of him setting up Ian. He starts from scratch and runs his patch cable set up... He plays some killer lead runs in that video.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.