Research candidate — not published guidance
MIDI controller missing an adapter, cable, knob or accessory
A controller that lacks its power adapter or a knob may simply be incomplete. Compatibility is model-specific, so this remains a research candidate.
Evidence still missing: Adapter voltage and polarity, and knob-shaft compatibility, are model-specific. No manufacturer specification pages have been verified for a launch set of models.
- Liquid damage, dead boards and intermittent controls are outside it.
- Unsupported software or drivers can make working hardware unsellable.

